Subject: NGC 3501 - NGC 4000 revised notes 3/17/05 From: Steve Gottlieb Date: Mon, 21 Mar 2005 23:58:37 -0800 To: Bob Erdmann [This file updated by seperate e-mail dated 02/19/2006] NGC 3501 = UGC 06116 = MCG +03-28-051 = CGCG 095-097 = FGC 1187 = PGC 33343 11 02 47.3 +17 59 21 V = 12.9; Size 3.9x0.5; SB = 13.5; PA = 27d 17.5": faint, edge-on 7:1 SSW-NNE, 3.0'x0.4', low surface brightness, very slightly brighter elongated core. A mag 14 star is 2.3' SE of center. N3507 lies 12.7' NE. ************************************************************ NGC 3502 = N3479: = MCG -02-28-027 = PGC 33306 10 58 55.4 -14 57 41 See description for N3479. Leavenworth's rough position (I) matches M-02-28-041 in RA but is 50' too far N. This is the identification used in RNGC, but the Leander-McCormick positions are generally fairly accurate in declination but off several tmin in RA. Corwin feels a more like identification is N3502 = N3479. Both of these entries are from volume 1 of the Leander-McCormick catalogue (Leavenworth and Stone) and differ only in RA by 4 tmin. ************************************************************ NGC 3504 = UGC 06118 = MCG +05-26-039 = CGCG 155-049 = PGC 33371 11 03 11.2 +27 58 20 V = 11.0; Size 2.7x2.1; SB = 12.8 17.5" (3/25/95): bright, large, elongated 2:1 NNW-SSE, 2.5'x1.2'. The halo has a fairly high irregular surface brightness. Sharp concentration with a very small well-defined dominating core. Two mag 14 stars lie 1.7' NNW (45" separation). The bright core appears offset to the S side with the halo more extensive to the N. First of three with N3512 12' ENE and N3515 24' NE. Discovered by WH (I 88). JH made no less than 7 observations in the Slough Catalogue (h810). The RA in the RNGC is 1.0 tmin too far E and the galaxy is misplotted on the first version of U2000 (later fixed). Also see N3506. ************************************************************ NGC 3505 = N3508? = MCG -03-28-031 = IC 2622 11 02 59.7 -16 17 19 Size 1.0x0.9 See observation of N3508. Discovered by JH at the Cape (h3312). There are two mag 14.5-15 GSC stars about 1' NE and 1' SE of h's place which are possible candidates. In NGCBUGS, Corwin suggests this may be a duplicate observation of N3508 based on the description, although the declination is significantly off (over 45'). Not found by Dorothy Carlson. ************************************************************ NGC 3506 = UGC 06120 = MCG +02-28-047 = CGCG 066-105 = PGC 33379 11 03 12.9 +11 04 37 V = 12.5; Size 1.2x1.1; SB = 12.6 17.5": fairly faint, round, 1.0' diameter. Just a weak central brightening with no distinct core or nucleus. Preceded by a trio of mag 13.5 stars within 4'. Discovered by WH (III 22). JH's mean position (h811) from three observations matches U06120 = M+02-28-047 = CGCG 66-105. The RA in the RNGC is 1.0 tmin too far E and the galaxy was misplotted in the first printing of U2000 (based on the RNGC error). Also see notes for N3504. ************************************************************ NGC 3507 = UGC 06123 = MCG +03-28-053 = CGCG 095-100 = PGC 33390 11 03 25.6 +18 08 08 V = 10.9; Size 3.4x2.9; SB = 13.3; PA = 110d 17.5": unusual appearance as a bright mag 10.5 star is superimposed very close to the center! Fairly faint, moderately large, 2.5' diameter, irregularly round. The core is difficult to view but is located just 30" SW of the superimposed star and the galaxy is slightly offset to the W side of the star. N3501 lies 12.7' SW. ************************************************************ NGC 3508 = MCG -03-28-031 = IC 2622 = N3505: = PGC 33362 11 02 59.7 -16 17 19 V = 13.2; Size 1.0x0.9; SB = 12.9; PA = 15d 18" (3/13/04): fairly faint, fairly small, round, 0.7' diameter, even surface brightness. A mag 13 star is attached on the NNE tip of the galaxy. At times the galaxy appears slightly elongated N-S, ~1.0'x0.7' and the DSS image confirms this impression. Observation made through thin clouds. This is a starburst and luminous infrared galaxy with an active nucleus. Discovered by WH (II 507) and described simply as "F. S. E." Reobserved by JH (h814) and his position matches MCG -03-28-031. Interestingly, he described this galaxy as "vL". Swift's RA for IC 2622 is 0.5 tmin E and 3' N of MCG -03-28-031 although his description applies to this galaxy. Also see the N3505 identification which may be another observation of this galaxy. ************************************************************ NGC 3509 = UGC 06134: = MCG +01-28-033 = CGCG 038-109 = Arp 335 = VV 75 = PGC 33446 11 04 23.6 +04 49 43 V = 12.7; Size 2.1x1.0; SB = 13.4; PA = 40d 17.5": fairly faint, moderately large, elongated 5:2 SSW-NNE, 1.6'x0.7'. Low surface brightness with a very weak concentration (no visible core). Difficult to determine outer extent of halo but appears to have an asymmetric shape (slightly curved?). Discovered by WH (III 598). Observed only once and described as "eF, S, lE. I could not verify it." Not found by Bigourdan. In Scientific Papers, Dreyer states this number should probably be rejected "as there was fog which indeed was so strong as make everything swim to me." The NGC position is exactly 1.0 tmin W and 3' S of U06134 = M+01-28-033 = Arp 335. Roger Sinnott claims the RNGC RA is incorrect (off by 1.0 tmin) but the RNGC RA matches U06134. ************************************************************ NGC 3510 = UGC 06126 = MCG +05-26-040 = CGCG 155-050 = PGC 33408 11 03 43.6 +28 53 06 V = 12.2; Size 4.0x0.8; SB = 13.3; PA = 163d 13.1": faint, edge-on streak 4:1 NNW-SSE. Located 7.6' ESE of mag 7.3 SAO 81642 which interferes with viewing. ************************************************************ NGC 3511 = ESO 502-013 = MCG -04-26-020 = UGCA 223 = PGC 33385 11 03 23.7 -23 05 11 V = 11.0; Size 5.8x2.0; SB = 13.5; PA = 76d 17.5": fairly bright, large, very elongated 3:1 WSW-ENE, 4.0'x1.4'. Broad concentration to a larger brighter core. Bracketed by a mag 13 star at the ENE end and a mag 14 star at the WSW tip. Forms a pair with N3513 10.8' SE. A mag 9.5 star (SAO 179479) is 5' S, roughly midway between the galaxies. ************************************************************ NGC 3512 = UGC 06128 = MCG +05-26-041 = CGCG 155-051 = PGC 33432 11 04 02.9 +28 02 12 V = 12.3; Size 1.6x1.5; SB = 13.1 17.5": moderately bright, fairly small, 1.2' diameter, round, weak concentration with an irregular surface brightness. Second of trio with N3504 12' WSW and N3515 14' NNE. Surrounded by three mag 12-13 stars 2.9' N, 3.7' E and 2.1' SW. 8": faint, small, round. Forms a pair with N3504 12' SW. ************************************************************ NGC 3513 = ESO 502-014 = MCG -04-26-021 = UGCA 224 = PGC 33410 11 03 46.0 -23 14 38 V = 11.5; Size 2.8x2.2; SB = 13.4; PA = 95d 17.5": fairly faint, moderately large, 2.5'x2.0', irregular surface brightness, only a slight central brightening. A mag 13.5 star is 1.7' E of center. A line of three equally spaced mag 11 stars lies about 4' S. Forms a pair with N3511 10.8' NW. ************************************************************ NGC 3514 = ESO 570-001 = MCG -03-28-035 = PGC 33430 11 03 59.9 -18 46 51 V = 12.8; Size 1.1x0.9; SB = 12.7; PA = 115d 18" (3/5/05): faint, fairly small, elongated 3:2 ~E-W, 1.0'x0.7'. Broadly concentrated with a slightly brighter middle. Located 1.1? SE of mag 4.1 Alpha Crateris. ************************************************************ NGC 3515 = UGC 06139 = MCG +05-26-044 = CGCG 155-055 = PGC 33467 11 04 37.3 +28 13 40 V = 13.9; Size 1.0x0.8; SB = 13.5; PA = 55d 17.5": very faint, fairly small, elongated 3:2 SW-NE, 0.8'x0.5', weak concentration. Located 13.7' NE of N3512. ************************************************************ NGC 3516 = UGC 06153 = MCG +12-11-009 = CGCG 334-011 = PGC 33623 11 06 47.5 +72 34 07 V = 11.7; Size 1.7x1.3; SB = 12.5; PA = 45d 17.5": moderately bright but small, slightly elongated SW-NE, sharp small bright core dominates, fairly small halo. A mag 14 star is 1.2' SE. Two mag 10 stars lie 2.3' NE and 4.1' W. This is a Seyfert galaxy. ************************************************************ NGC 3517 = UGC 06144 = MCG +10-16-057 = CGCG 291-027 = PGC 33532 11 05 36.9 +56 31 28 V = 13.0; Size 0.9x0.8; SB = 12.5; PA = 120d 17.5": fairly faint, fairly small, round, diffuse edges, broad concentration. ************************************************************ NGC 3518 = MCG -01-26-014 = N3110 = N3122 = PGC 33442 10 04 02.0 -06 28 29 See observing notes for N3110. One hour error in RA in Stone's position. Stone's very rough position in list I is 11 04.5 -06 34 (2000) although he mentions "In same field nebula discovered by Stephan". Corwin notes that none of Stephan's discoveries are within 5 degrees of Stones's rough position. Furthermore, the discovery sketch shows a double nebula with four stars nearby but there is nothing within several degrees that matches this description. Although, N3122 is located an hour of RA preceding Stone's position it matches his sketch! (one of the "stars" is MCG -01-26-013). The RNGC misidentifies N3518 with an anonymous galaxy at 11 04.3 -06 28. See NGCBUGS for the full story. ************************************************************ NGC 3521 = UGC 06150 = MCG +00-28-030 = CGCG 010-074 = PGC 33550 11 05 49.2 -00 02 02 V = 9.0; Size 11.0x5.1; SB = 13.2; PA = 163d 17.5": very bright, very large, elongated 5'x2' NNW-SSE. This is an impressive galaxy! Well-defined small bright oval core NNW-SSE, stellar nucleus. Appears mottled near the core and on the west side. Along the west side is a dust lane evident as a sharp light cut-off. The west side is somewhat fainter due to dust but extends beyond the dust lane. ************************************************************ NGC 3522 = UGC 06159 = MCG +03-28-060 = CGCG 095-113 = PGC 33615 11 06 40.4 +20 05 08 V = 13.1; Size 1.2x0.7; SB = 13.0; PA = 117d 18" (5/31/03): fairly faint, fairly small, elongated 5:3 WNW-ESE, 0.7'x0.4'. Fairly sharply concentrated with a brighter 15" round core. ************************************************************ NGC 3523 = UGC 06105 = MCG +13-08-053 = CGCG 351-054 = PGC 33367 11 03 06.3 +75 06 57 V = 12.9; Size 1.3x1.3; Surf Br = 13.3 18" (3/30/05): fairly faint, moderately large, round, 1.2' diameter. Symmetrical appearance with a weak even concentration to the center but no defined core. N3500 lies 7.2' NW. 17.5" (4/25/98): extremely faint, fairly small, round, 45" diameter, low even surface brightness. Collinear with two mag 11 stars 5' ESE and 9' ESE. Brightest in trio with N3465 14.5' WNW and N3500 7' NW. Observation severely hampered by poor transparency. ************************************************************ NGC 3524 = UGC 06158 = MCG +02-28-050 = CGCG 066-112 = PGC 33604 11 06 32.1 +11 23 08 V = 12.8; Size 1.6x0.5; SB = 12.4; PA = 14d 17.5": moderately bright, elongated 5:2 SSW-NNE, 1.5'x0.6'. Fairly sharp concentration with a well-defined 15" bright core and an occasional stellar nucleus. A mag 11.5 star lies 0.9' NNW and a mag 13 star 2.0' NNW of center. ************************************************************ NGC 3525 = N3528 = N3497 = IC 2624 = E570-006 = MCG -03-28-037 = PGC 33667 11 07 18.1 -19 28 19 See observing notes for N3528 Discovered by Stone (list I). His very rough position is only 0.7 tmin W (only 1' off in dec) of E570-006 = M-03-28-037. The same galaxy was observed by WH (III 824 = N3497), JH (h3316 = N3528) and Swift (IC 224) so it received 4 NGC/IC designations! ************************************************************ NGC 3526 = UGC 06167 = MCG +01-28-039 = CGCG 038-129 = N3531 = PGC 33635 11 06 56.3 +07 10 23 V = 13.2; Size 1.9x0.4; SB = 12.8; PA = 55d 17.5": fairly faint, nearly edge-on 4:1 SW-NE, 2.0'x0.5', very weak concentration. A mag 13 star is just off the SW end 1.3' from center. Located 12' ENE of mag 8.3 SAO 118656 (at the W edge of the field). ************************************************************ NGC 3527 = UGC 06170 = MCG +05-26-059 = CGCG 155-066 = PGC 33669 11 07 18.2 +28 31 39 V = 13.7; Size 1.0x0.9; SB = 13.5 13.1": very faint, very small, round, smooth surface brightness. A mag 12 star is 2.1' WNW. ************************************************************ NGC 3528 = N3525 = N3497 = IC 2624 = E570-006 = MCG -03-28-037 = PGC 33667 11 07 18.1 -19 28 17 V = 11.9; Size 2.6x1.4; SB = 13.2; PA = 59d 17.5": moderately bright, fairly large contains a bright core ~45" diameter increasing to a stellar nucleus. Surrounding the core is a fairly large ill- defined halo elongated 3:2 SW-NE, ~2.5'x1.5' with a low surface brightness. A couple of faint stars are superimposed on the south side. This galaxy may hold the record for the most NGC/IC aliases as N3528 = N3525 = N3497 = IC 2624. Forms a pair with N3529 5' S. JH's position (h3316) is just 6 tsec far W of E570-006 = M-03-28-037. This galaxy is identified as N3497 in RC3 which is a William Herschel discovery (III 824) with a poor position. In Scientific Papers of WH, Dreyer notes that WH's position for III 824 = N3497 has an error of 6 tmin in RA and is identical to h3316 = N3528. Swift's position for IC 2624 is 5' too far S although correctly described as the N of two. Finally, Stone's N3525 is also a duplicate observation of this galaxy! ************************************************************ NGC 3529 = ESO 570-007 = MCG -03-28-038 = IC 2625 = PGC 33671 11 07 19.1 -19 33 20 V = 14.2; Size 1.4x1.1; SB = 14.5; PA = 55d 17.5": fairly faint, fairly small, slightly elongated with very faint extensions suspected at moments, ~45"x35", very weak concentration. Forms a pair with N3528 = N3525 = N3497 just 5' N. ************************************************************ NGC 3530 = UGC 06188 = MCG +10-16-064 = CGCG 291-030 = PGC 33766 11 08 40.4 +57 13 48 V = 13.8; Size 0.6x0.3; SB = 11.7; PA = 99d 17.5": fairly faint, very small, elongated ~E-W, bright core, probable stellar nucleus. ************************************************************ NGC 3531 = N3526 = U06167 = MCG +01-28-039 = CGCG 038-129 = PGC 33635 11 06 56.3 +07 10 23 See observing notes for N3526. Discovered by Holden. In the IC I notes, Spitaler equates N3531 with Marth's N3526 (visual descriptions are nearly identical). RNGC does not note this equivalence. See NGCBUGS. ************************************************************ NGC 3532 = ESO 128-SC31 = Cr 238 11 05 48 -58 46.2 V = 3.0; Size 55 13.1" (2/18/04 - Costa Rica): this amazing naked-eye cluster packs several hundred stars, filling the 20 Nagler field (74x and 65' field of view) with wall-to-wall stars! The central region is condensed and quite rich with several dense knots consisting of pairs, triples, chains, etc. The brighter stars are extended ~E-W, although there is no well-defined edge to this huge cluster. There is a huge "U" shaped chain of stars around the periphery including a bright star on the SE end. A neat equal mag equilateral triangle of stars stood out within the maze of stars. The cluster is quite prominent naked-eye, as a 45' cloud just 3? ENE of Eta Carina in the NE corner of the rich Carina starcloud and is densely packed with dozens of resolved stars in the 9x50 finder. Mag 3.9 V382 Carinae is off the NE side. 18" (7/7/02 - Magellan Observatory, Australia): This spectacular naked-eye and binocular cluster (3? ENE of Eta Carina) and fills the entire 51' field of the 27 Panoptic (76x) with several hundred stars mag 7 and fainter. It is unusually elongated ~E-W, perhaps 55'x30' and widening on the following side. The stars are irregularly distributed with many in pairs, small groups, chains and loops. A group of about a dozen stars form a perfect "S" asterism. Interestingly, there is a lack of dense knots although the entire central region is rich. Many of the stars appear to have a blue or yellow tint. This is one of the top open clusters in the sky although it is probably best in a wider field view. ************************************************************ NGC 3533 = N3557A = E377-011 = MCG -06-25-002 = AM 1104-365 = LGG 229-009 = PGC 33647 11 07 07.5 -37 10 22 V = 12.9; Size 2.8x0.6; SB = 13.4; PA = 65d 13.1" (2/17/04 - Costa Rica): fairly faint, moderately large, elongated 5:2 or 3:1 WSW-ENE, low fairly even surface brightness with just a weak, broad concentration. A mag 14 star is just N of the ENE tip. First in the N3557 group (40' NW of N3557). ************************************************************ NGC 3534 = UGC 06190 = MCG +05-26-062 = CGCG 155-072 Ho 229a = PGC 33782 11 08 55.6 +26 36 38 V = 14.2; Size 1.3x0.4; SB = 13.4; PA = 92d 17.5": very faint, fairly small, elongated 2:1 E-W, 1.0'x0.5', broad weak concentration. A mag 9.5 star is 4.3' NW. This is a double system with separation 0.9' between centers (not resolved) and forms a triplet with M+05-26- 064 2.9' ENE (observed). ************************************************************ NGC 3535 = UGC 06189 = MCG +01-29-004 = CGCG 039-010 = NPM1G +05.0287 = PGC 33760 11 08 34.0 +04 49 55 V = 13.5; Size 1.1x0.5; SB = 12.6; PA = 178d 17.5": faint, small, round, 30" diameter, brighter core. A mag 15 star is just 43" E of center. ************************************************************ NGC 3536 = UGC 06191 = MCG +05-26-061 = CGCG 155-073 = NPM1G +28.0186 = PGC 33779 11 08 51.2 +28 28 32 V = 13.7; Size 1.1x0.8; SB = 13.5; PA = 155d 17.5": very faint, round, 40" diameter, low even surface brightness. The 20' field has only a half dozen stars. N3539 lies 12.3' NNE. Probable member of Abell 1185 and located about 30' SW of the core of the cluster. ************************************************************ NGC 3537 = PGC 33752 = PGC 33753 11 08 26.6 -10 15 25 V = 12.8; Size 1.5x1.3; SB = 13.4 17.5": fairly faint, fairly small, irregularly round, ~1.0'x0.8', moderate surface brightness, weak concentration to an irregular nucleus. This is a double system with a superimposed companion on the south side. Located 8' W of mag 8.7 SAO 138012. N3527 is misidentified in the RNGC and MCG as MCG -02-29- 003 which is located 14' S (see visual observation). Described by Common as "2 stars inv in haze, Pos. 160 deg." The NGC position (from micrometric observations from Tempel) is an exact match with a double galaxy at GSC position 11 08 26.6 -10 15 25.0 (on the preceding galaxy) and this is probably also Common's object. RNGC and MCG both misidentify N3537 as M-02- 29-003 at 11 08.5 -10 30. See NGCBUGS for further discussion. ************************************************************ NGC 3539 = MCG +05-26-065 = CGCG 155-077 = PGC 33799 11 09 08.9 +28 40 20 V = 14.5; Size 1.1x0.2; SB = 12.9; PA = 3d 17.5": very faint, fairly small, very elongated 3:1 N-S, 0.6'x0.2'. Contains a small bright core with very faint extensions. N3536 lies 12.3' SSW. Member of Abell 1185. ************************************************************ NGC 3540 = UGC 06196 = MCG +06-25-011 = CGCG 185-011 = NPM1G +36.0243 = N3548 = PGC 33806 11 09 16.1 +36 01 15 V = 13.3; Size 1.4x1.2; SB = 13.7 17.5": fairly faint, fairly small, round, small bright core. Located 8' E of mag 7.3 SAO 62421 and 17' S of mag 5.7 SAO 62427. ************************************************************ NGC 3541 = MCG -02-29-003 = PGC 33772 11 08 32.1 -10 29 30 V = 14.5; Size 1.3x1.2; SB = 14.8 17.5": very faint, fairly small, round, 0.5' diameter. Has a much lower surface brightenss than N3537 14' N. The NGC identification is very uncertain due to an imprecise position by Common and N3541 may apply to MCG -02-29-004 28' SSE. This galaxy is identified as N3537 in MCG and RNGC. Discovered by Common and described as "Nebulous star, B centre." The rough discovery position is 12' N of M-02-29-004 and 15' S of M-02-29-003, which are both possible candidates. Corwin feels that based on the description M-02-29- 003 is more likely. This galaxy is identified as N3537 in MCG and RNGC. RNGC lists this entry as nonexistent. See NGCBUGS. ************************************************************ NGC 3542 = MCG +06-25-013 = CGCG 185-013 = PGC 33868 11 09 55.5 +36 56 47 V = 14.1; Size 0.8x0.3; SB = 12.5; PA = 45d 17.5": faint, small, elongated 2:1 SW-NE, low surface brightness, no concentration. Forms a trio with N3545 3.5' ENE and M+06-25-014 3.3' N. M+06- 25-015 is at the edge of the field 11' N. ************************************************************ NGC 3543 = UGC 06213 = MCG +10-16-075 = CGCG 291-034 = PGC 33953 11 10 56.5 +61 20 49 V = 14.1; Size 1.3x0.2; SB = 12.5; PA = 8d 17.5": faint, moderately large, edge-on 5:1 ~N-S. A wide pair of mag 14 stars at 51" separation lie 2' NE. ************************************************************ NGC 3544 = N3571 = E570-011 = MCG -03-29-001 = PGC 34028 11 11 30.3 -18 17 23 See observing notes for N3571. Discovered by Stone (I). His rough position is 2 tmin W (typical error) of N3571 = E570-011 = M-03-29-001 and his listed position angle is a perfect match. This galaxy was originally discovered by WH (II 819) although RC3 uses N3544 as the primary designation. ************************************************************ NGC 3545 = MCG +06-25-016/-017 = CGCG 185-015 = VV 182 = NPM1G +37.0304 = PGC 33893 11 10 12.3 +36 57 53 V = 13.8; Size 0.7x0.3 17.5": faint, small, round, 40" diameter, slight even concentration. Forms a trio with N3542 3.5' WSW and M+06-25-014 4.7' NW. M+06-25-015 lies 10.5' NNW. This is a double system with components separated by just 13" (oriented SW-NE). ************************************************************ NGC 3546 = MCG -02-29-007 = NPM1G -13.0315 = PGC 33846 11 09 46.8 -13 22 50 V = 13.3; Size 1.5x0.9; SB = 13.5; PA = 100d 17.5": faint, very small, slightly elongated, 25"x 20", stellar nucleus. Apparently I picked up the core region only as the arms have a much lower surface brightness. ************************************************************ NGC 3547 = UGC 06209 = MCG +02-29-007 = CGCG 067-019 = PGC 33866 11 09 55.9 +10 43 14 V = 12.8; Size 1.9x0.9; SB = 13.3; PA = 7d 17.5": fairly faint, moderately large, elongated N-S, bright core. Possible member of Leo group. ************************************************************ NGC 3548 = N3540 = U06196 = MCG +06-25-011 = CGCG 185-011 = NPM1G +36.0243 = PGC 33806 11 09 16.1 +36 01 15 See observing notes for N3540. JH's position for h827 is 1.0 tmin E of his own N3540 (given an accurate position) and the descriptions are very similar (discovered on different sweeps). Not found by Bigourdan at Hershel's place. This galaxy is listed as identical to N3540 in RNGC. See NGCBUGS for more. ************************************************************ NGC 3549 = UGC 06215 = MCG +09-18-097 = CGCG 267-047 = PGC 33964 11 10 56.8 +53 23 17 V = 12.1; Size 3.2x1.2; SB = 13.4; PA = 38d 17.5": fairly bright, moderately large, elongated 5:2 SW-NE, 2.6'x1.0', broad concentration. The ends fade into the background but do not taper giving a boxy impression. Three collinear mag 13.5 stars nearly parallel the galaxy off the SE side. The nearest is 1.7' ESE of center. ************************************************************ NGC 3550 = UGC 06214 = MCG +05-27-002 = CGCG 155-082 = CGCG 156-003 = PGC 33927 11 10 38.5 +28 46 04 V = 13.3; Size 1.1x1.0; SB = 13.2 13.1" (3/24/84): brightest in the Abell 1185 cluster. Faint, small, round. A mag 11 star is 1.5' E and a mag 12 star1.5' SSW. N3552 lies 4.7' SSE. ************************************************************ NGC 3551 = CGCG 125-032 = NPM1G +22.0318 = Ho 230b = PGC 33825 11 09 42.8 +21 44 07 Size 0.2x0.2 17.5" (4/15/99): extremely faint, very small, possibly elongated but difficult to confirm, 20" in diameter. Could not resolve this double system with certainty (or only viewed the brighter component). Located 1.4' SSW of N3555. 17.5" (3/12/94): very faint, very small, round, fairly low even surface brightness. Forms a close pair with N3555 1.4' NNE. This is a double system [29" between centers] which was not resolved or only one component visible. Member of Abell 1177. Discovered by Swift (I). His position is 1.0 tmin E of CGCG 125-032 but similar in declination. His relative separation from N3555 is 10 tsec in RA and 0.5' S but if N3555 = U06203 then the actual separation is 3.2 tsec and 1' S. Corwin suggests that N3551 may instead be the brightest member of Abell 1177 (although described as fainter than N3555) and then N3555 = CGCG 125-034. This galaxy is mentioned in the notes of U06203 as 0.2x0.2 + 0.2x0.15 but it is not identified as N3551 in UGC or CGCG and not found in RC3, MCG or DSFG. The two galaxies are given separate positions in GSC at 11 09 41.2 +21 44 25 and 11 09 42.8 +21 44 07. RNGC (and PGC) identifies the western component as N3551. See NGCBUGS for discussion. ************************************************************ NGC 3552 = MCG +05-27-004 = CGCG 155-085nf = CGCG 156-006nf = PGC 33932 11 10 42.9 +28 41 35 V = 14.6; Size 0.6x0.5; SB = 13.1 13.1" (3/24/84): very faint, slightly brighter than N3553 very close SW just 44" from center. Located in the core of Abell 1185. Discovered by WH (III 352). This is the slightly brighter of a very close pair with N3553 (discovered by Bigourdan). Unfortunately, Bigourdan assigned N3553 to III 352 and Dreyer used his position so the NGC RA is out of order for N3552 and N3553. See NGCBUGS for a detailed discussion of the situation. ************************************************************ NGC 3553 = MCG +05-27-003 = CGCG 155-085sw = CGCG 156-006sw = PGC 33933 11 10 40.5 +28 41 06 V = 13.8; Size 0.6x0.6; SB = 12.5 13.1" (3/24/84): very faint, extremely small. Located very close SW of N3552 (44" between centers). The pair is just resolved at 220x. Located in the core of rich cluster Abell 1185. Discovered by Bigourdan. He identified N3553 as III 352 = N3552 and called his "nova" N3552. The ID's given here follow historical precidence. See NGCBUGS for the complete story. ************************************************************ NGC 3554 = MCG +05-27-007 = CGCG 155-086 = CGCG 156-007 = NPM1G +28.0187 = PGC 33948 11 10 47.9 +28 39 36 V = 14.4; Size 0.5x0.5; SB = 12.7 13.1" (3/24/84): extremely faint and small. Located in the core of Abell 1185 close SSE of the N3552/N3553 pair. Appears just non-stellar and near the visual threshold. ************************************************************ NGC 3555 = UGC 06203 = MCG +04-26-035 = CGCG 125-033 = NPM1G +22.0319 = PGC 33836 11 09 44.4 +21 45 32 V = 12.8; Size 1.8x1.7; SB = 14.0; PA = 30d 17.5" (4/15/99): brightest of trio with N3551 1.4' SSW and CGCG 125-034 . Appears very faint, small, round, 0.7' diameter. Located 9' NW of three mag 9 stars which form a shallow arc. This galaxy is the brightest in Abell 1177. 17.5" (3/12/94): faint, fairly small, round, 1.0' diameter, weak even concentration to brighter core and very small nucleus. A trio of mag 9 stars are in the field 8'-9' S including mag 8.9 SAO 81702 9.1' SE and mag 9.2 SAO 81700 8.7' SSE. Forms a close pair with N3551 1.4' SSW. Discovered by Swift (I) as the NE of a pair with N3551. His RA is off by exactly 1.0 tmin from U06203 = M+04-26-035. This galaxy is identified as N3555 in RNGC and PGC but not UGC, MCG or CGCG. As N3551 (placed close SW by Swift) is 1.5' SW from this object, the identification appears OK. See NGCBUGS for an alternate interpretation of the identifications. ************************************************************ NGC 3556 = M108 = U06225 = MCG +09-18-098 = CGCG 267-048 = CGCG 268-001 = PGC 34030 11 11 31.8 +55 40 14 V = 10.0; Size 8.7x2.2; SB = 13.1; PA = 80d 17.5": very bright, very large, edge-on 4:1 WSW-ENE, 8.0'x2.0'. A mag 12 star is superimposed just westW of center (V = 12.5) appearing similar to a bright stellar nucleus. Two fainter stars are also superimposed E of the core. A bright knot is visible west of the core (1.3' W of the star) and the region near the core appears dusty. A mag 12 star is just S of the W end 4.9' from the center. 13": fairly bright, very elongated, stellar nucleus. ************************************************************ NGC 3557 = ESO 377-016 = MCG -06-25-005 = AM 1107-371 = LGG 229-003 = PGC 33871 11 09 57.6 -37 32 21 V = 10.4; Size 4.1x3.0; SB = 13.1; PA = 30d 13.1" (2/17/04 - Costa Rica): fairly bright, fairly large, elongated 3:2 SSW- NNE, 2.5'x1.5'. Sharply concentrated with a prominent 40" core. With averted vision the diffuse outer halo extends to 3'x2' in size. A mag 10.5 star lies 3.3' SE. Brightest in a group including N3564 7.7' E and N3568 11.5' NE and part of the Hydra-Centaurus Supercluster. ************************************************************ NGC 3558 = MCG +05-27-008 = CGCG 155-089 = CGCG 156-010 = Mrk 422 = PGC 33960 11 10 55.9 +28 32 37 V = 13.7; Size 0.9x0.8; SB = 13.1 13.1" (3/24/84): this is the second brightest galaxy in the rich cluster Abell 1185. Faint, very small, round. There is a string of four faint stars preceding. ************************************************************ NGC 3559 = UGC 06217 = MCG +02-29-008 = CGCG 067-025 = PGC 33940 11 10 45.2 +12 00 58 V = 12.7; Size 1.3x0.9; SB = 12.7; PA = 55d 17.5": fairly faint, moderately large, elongated 3:2 SW-NE, 1.2'x0.8', fairly low surface brightness, brighter core. IC 2628 is located 14' NE. ************************************************************ NGC 3560 = N3559 = U06217 = MCG +02-29-008 = CGCG 067-025 11 10 45.2 +12 00 58 See observing notes for NGC 3559. Discovered by JH (h834). JH listed h834 = III 79 = N3560 in his 1833 Slough Catalogue although probably due to a digit error his declination was 50' too small. As JH listed h834 separately in GC (apparently overlooking his previous equivalence), Dreyer listed h834 = N3560 separately in the NGC. Corwin (see e- mail 8/10/95) identifies N3560 = h834 = III 79 = N3559 as JH originally stated. Reinmuth states "in Dreyer's place *16." Also listed as a star by Carlson. See NGCBUGS for full discussion. ************************************************************ NGC 3561 = UGC 06224s = MCG +05-27-010 =CGCG 155-090s = CGCG 156-011s = VV 237 = Arp 105 = PGC 33991 11 11 13.3 +28 41 46 V = 13.9; Size 0.7x0.7; SB = 13.0 13.1" (3/24/84): very faint, very diffuse spot with averted. This member of Abell 1185 is slightly larger than most members. The dwarf galaxy "Ambartsumian's Knot" is located at the southern end of a plume extending from N3561B. This is a complex multiple system in Abell 1185 discovered by John Herschel (h835) who observed the brighter southern component in three different sweeps. Listed as N3561A/B in the RC3 (M+05-27-010, M+05-27-011), 0.7x0.7 and 0.9x0.9 although only the southern member should be credited to JH. The dwarf galaxy "Ambartsumian's knot" is located at the southern end of a plume extending from N3561b. ************************************************************ NGC 3562 = UGC 06242 = MCG +12-11-011 = CGCG 334-013 = PGC 34134 11 12 58.7 +72 52 45 V = 12.2; Size 1.7x1.3; PA = 165d 17.5": fairly faint, small, slightly elongated ~E-W, gradually brighter halo, small bright core. A mag 14.5 star is 1.2' NNE. ************************************************************ NGC 3563 = UGC 06234 = MCG +05-27-013/14 = (CGCG 156-014) = NPM1G +27.0306 = Ho 234 = PGC 34025 11 11 25.3 +26 57 49 V = 13.7; Size 0.9x0.7; SB = 13.0; PA = 15d 18" (5/31/03): faint, very small, round, 0.4' diameter. This is a double galaxy and a very compact companion was just resolved on the W edge. Located 3.3' S of mag 9.5 SAO 81711. ************************************************************ NGC 3563A = (U06234) = (CGCG 156--014) = MCG +05-27-013 = Ho 234b = NPM1G +27.0305 = PGC 34012 11 11 23.8 +26 57 42 V = 15.0; Size 0.35x0.2 18" (5/31/03): this is the western component of a double system with larger and brighter N3563B. Appears as an extremely faint, round, "knot" (perhaps 10" diameter) just 17" W of center from N3563B. ************************************************************ NGC 3564 = ESO 377-018 = MCG -06-25-006 = AM 1108-371 = LGG 229-004 = PGC 33923 11 10 36.4 -37 32 51 V = 12.1; Size 2.1x0.4; SB = 12.3; PA = 15d 13.1" (2/17/04 - Costa Rica): fairly faint, fairly small, elongated 5:2 SSW-NNE, 1.4'x0.6', weak concentration and tapers at the ends (spindle-shaped). Follows N3557 by 7.7' in a group and bracketed by two mag 13 stars 2' NW and 2' SE. ************************************************************ NGC 3567 = UGC 06230 = MCG +01-29-011 = CGCG 039-051 = PGC 34004 11 11 18.7 +05 50 10 V = 13.3; Size 0.9x0.7; SB = 12.6; PA = 132d 18" (3/5/05): fairly faint, round, contains a relatively bright stellar or quasi-stellar nucleus surrounded by a round, faint halo. Forms a double system with MCG +01-29-012 39" SE. ************************************************************ NGC 3568 = ESO 377-020 = MCG -06-25-009 = LGG 229-008 = PGC 33952 11 10 48.5 -37 26 52 V = 12.3; Size 2.5x0.8; SB = 12.9; PA = 7d 13.1" (2/17/04 - Costa Rica): fairly faint, very elongated 7:2 N-S, 1.5'x0.4', fairly low even surface brightness. Cradled by a trio of mag 10-11 stars just following (the 2 stars off the N and S ends are parallel to the major axis). N3564 lies 6.7' SSW and the brightest member of the group, N3557, is 11.5' SSW. ************************************************************ NGC 3569 = UGC 06238 = MCG +06-25-020 = CGCG 185-018 = PGC 34075 11 12 08.1 +35 27 08 V = 13.3; Size 1.1x1.0; SB = 13.3 18" (5/31/03): faint, small, round, 0.5' diameter, very weak concentration with no visible core. ************************************************************ NGC 3570 = UGC 06240 = MCG +05-27-019 = CGCG 156-018 = NPM1G +27.0307 = PGC 34071 11 12 03.3 +27 35 23 V = 13.5; Size 1.0x1.0; SB = 13.4 17.5": fairly faint, small, round, 30" diameter. Forms a pair with N3574 at 2.9' NE. Brightest in a faint group. ************************************************************ NGC 3571 = ESO 570-011 = MCG -03-29-001 = N3544 = PGC 34028 11 11 30.3 -18 17 23 V = 12.1; Size 3.0x1.0; SB = 13.2; PA = 94d 17.5": fairly faint, moderately large. Contains a small bright core surrounded by a faint halo elongated 2:1 ~E-W. Located 19' NW of mag 6.1 Psi Crateris. ************************************************************ NGC 3572 = ESO 129-SC1 = Cr 239 11 10 19 -60 14.9 V = 6.6; Size 20 18" (7/7/02 - Magellan Observatory, Australia): at 228x, this is an 8' irregular group of 80-100 stars including a mag 7.9 star on the west side and about a dozen mag 10 stars. A mag 6.7 star lies 11' SE of center, but outside the apparent cluster (but part of Cr 240). A dark patch is adjacent to the cluster and there is an impression of more bright and dark nebulosity in the field. At 128x with the UHC filter, the cluster is adjacent to a large field of faint nebulosity to the north with the borders of the nebulosity seemingly obscured by dust. Located 16' NW of mag 4.6 HD 97534. ************************************************************ NGC 3574 = MCG +05-27-022 = CGCG 156-020 = NPM1G +27.0308 = PGC 34080 11 12 12.2 +27 37 28 V = 14.8; Size 0.4x0.4; SB = 12.8 17.5": extremely faint, very small, round, 15" diameter, no details and requires averted vision. Located 2.9' NE of N3570 and second brightest in a group. ************************************************************ NGC 3575 = N3162 = U05510 = MCG +04-24-019 = CGCG 123-026 10 13 31.6 +22 44 15 See observing notes for N3162. There was a 1 hour error in RA by d'Arrest! Discovered by d'Arrest. Not found by Bigourdan, Reinmuth or Carlson. There is no nonstellar object near the NGC position (or *11 preceding) but Corwin uncovered that d'Arrest's RA was off by exactly one hour from N3162 and the description matches. D'Arrest made the same error with N3760 on this evening. See NGCBUGS. ************************************************************ NGC 3576 = ESO 129-EN005 = RCW 57 = PP 79 11 11 32.7 -61 21 48 Size 20x15 18" (7/7/02 - Magellan Observatory, Australia): first of six sections in a small, but very interesting nebulous complex consisting N3576, N3579, N3581, N3582, N3584 and N3586 and situated in the same low power field with N3603! N3576 is a somewhat isolated patch on the SW side about 5' from the main sections. At 128x and a UHC filter it appeared as a faint, circular hazy patch of low surface brightness with a mag 12.5 star at the west side and ~1.5' in diameter. N3579 is a small, fan or wedge-shaped section located just to the west of larger N3584. It appears 2' in size with a 12th magnitude star at the south tip and spreading to the north and west from this star. N3581 is the brightest section of this complex and has sharply defined borders running SW-NE and NW-SE, meeting at a right angle about 1' WNW of mag 9.2 SAO 251313. The overall size is ~2'x1.5' with an irregular surface brightness. It is just disconnected from N3582, which is close NE. N3582 is another fan-shaped section which wraps around a mag 10.6 star. It has a well-defined edge running SW to NE with the northern border running E-W. The brighter star is embedded roughly in the center and several mag 13 stars are near the border. The diameter is ~2' (similar in size to N3581 just SW). N3584 is the furthest NE and the largest section of nebulosity. It appears as a looping arc about 3.5'x1', bowed out towards the east and extending mostly N-S and narrowing at the north end. A few mag 12 stars are off the edges. N3579 appears as nearly a continuation of this loop towards the west. N3586 is the last in the complex is situated ~4' SE of the center of the complex. It appears as a faint, elongated steak of 2' length oriented N-S with an 11th magnitude star about 40" NE of the north tip. The entire group was roughly sketched and easily matched up with the DSS later. ************************************************************ NGC 3577 = UGC 06257 = MCG +08-21-006 = CGCG 242-010 = NPM1G +48.0180 = PGC 34195 11 13 44.9 +48 16 22 V = 13.4; Size 1.4x1.4; SB = 14.0 17.5": very faint, small, slightly elongated WNW-ESE. A mag 11.5 star is 30" SE of the outer halo and 1.2' from center. Forms a pair with N3583 5.2' NE. ************************************************************ NGC 3579 = ESO 129-EN008 = = RCW 57 11 11 58 -61 14 41 18" (7/7/02 - Magellan Observatory, Australia): N3579 is a small, fan or wedge- shaped section located just to the west of larger N3584 within the RCW 57 complex. It appears 2' in size with a 12th magnitude star at the south tip and spreading to the north and west from this star. This is the second of 6 separate pieces catalogued by John Herschel. ************************************************************ NGC 3580 = MCG +01-29-018 = CGCG 039-075 = PGC 34159 11 13 15.9 +03 39 26 V = 14.0; Size 0.9x0.3; SB = 12.4; PA = 178d 17.5": faint, very small, 20" diameter (core), quasi-stellar nucleus. At moments there are faint extensions N-S. A mag 13 star lies 1.3' ESE of center. ************************************************************ NGC 3581 = ESO 129-EN009 11 12 00.0 -61 18 18 18" (7/7/02 - Magellan Observatory, Australia): N3581 is the brightest section of this complex and has sharply defined borders running SW-NE and NW-SE, meeting at a right angle about 1' WNW of mag 9.2 SAO 251313. The overall size is ~2'x1.5' with an irregular surface brightness. It is just disconnected from N3582, which is close NE. ************************************************************ NGC 3582 = ESO 129-EN010 11 12 08.1 -61 16 30 18" (7/7/02 - Magellan Observatory, Australia): N3582 is another fan-shaped section which wraps around a mag 10.6 star. It has a well-defined edge running SW to NE with the northern border running E-W. The brighter star is embedded roughly in the center and several mag 13 stars are near the border. The diameter is ~2' (similar in size to N3581 just SW). ************************************************************ NGC 3583 = UGC 06263 = MCG +08-21-008 = CGCG 242-012 = PGC 34232 11 14 10.8 +48 19 06 V = 11.1; Size 2.8x1.8; SB = 12.7; PA = 125d 17.5": fairly bright, fairly small, elongated 3:2 WNW-ESE, 1.5'x1.0', bright core, stellar nucleus at moments. A mag 14 star is just off the S side 1.5' from the center. Forms a pair with N3577 5.2' SW. ************************************************************ NGC 3584 = ESO 129-EN012 11 12 19.2 -61 13 12 18" (7/7/02 - Magellan Observatory, Australia): N3584 is the furthest NE and the largest section of nebulosity. It appears as a looping arc about 3.5'x1', bowed out towards the east and extending mostly N-S and narrowing at the north end. A few mag 12 stars are off the edges. N3579 appears as nearly a continuation of this loop towards the west. ************************************************************ NGC 3585 = ESO 502-025 = MCG -04-27-004 = PGC 34160 11 13 17.1 -26 45 18 V = 9.9; Size 4.7x2.6; SB = 12.6; PA = 107d 17.5": very bright, fairly small, elongated 2:1 WNW-ESE, very high surface brightness, very bright core, stellar nucleus. Two mag 13.5 stars are 2.5' NE and 3.3 ' NNW. Forms the western vertex of a near equilateral triangle with two mag 8.5 stars (SAO 179663 and 179667) 8.4' E and 8.4' SE. ************************************************************ NGC 3586 = ESO 129-EN013 11 12 29.2 -61 20 54 18" (7/7/02 - Magellan Observatory, Australia): N3586 is the last in the complex is situated ~4' SE of the center of the complex. It appears as a faint, elongated steak of 2' length oriented N-S with an 11th magnitude star about 40" NE of the north tip. ************************************************************ NGC 3587 = PK 148+57.1 = M97 = Owl Nebula = PN G148.4+57.0 11 14 47.7 +55 01 08 V = 9.8; Size 202"x196" 17.5": fairly bright, very large, round. Two low contrast darker "holes" are visible with averted vision which form the "eyes" of the "Owl Nebula". The SE hole is darker but the NW hole appears larger. Central star not visible. 13": moderately bright, large, round. A single hole west of center is highly suspected. ************************************************************ NGC 3588 = UGC 06264 = MCG +04-27-009 = CGCG 126-011 = PGC 34219 11 14 02.5 +20 23 15 V = 14.3; Size 0.6x0.6; SB = 13.0 18" (5/31/03): very faint, very small, round, 0.4' diameter. Weak, even concentration to center. Located just 8' S of mag 2.6 Delta Leonis! (Zosma). Not difficult at 320x with Delta just outside of field. ************************************************************ NGC 3589 = UGC 06275 = MCG +10-16-096 = CGCG 291-046 = PGC 34308 11 15 13.4 +60 42 02 V = 13.8; Size 1.5x0.8; SB = 13.8; PA = 48d 17.5": faint, moderately large, oval ~SW-NE, diffuse. Located just W of the line connecting mag 7.5 SAO 15447 4' NNE and mag 8.6 SAO 15449 5' SE. ************************************************************ NGC 3590 = Cr 242 = E129-SC014 11 12 59 -60 47.3 V = 8.2; Size 4 18" (7/7/02 - Magellan Observatory, Australia): at 228x, this is a small, fairly bright 2' knot of ~20 stars mag 10 and fainter. At 76x this diminutive cluster is set in a remarkable field, forming a triangle with N3603 and the N3579-86 complex to the south. ************************************************************ NGC 3591 = MCG -02-29-012 = NPM1G -13.0319 = PGC 34220 11 14 03.3 -14 05 14 V = 13.3; Size 1.3x0.9; SB = 13.4; PA = 150d 18" (3/19/04): fairly faint, fairly small, slightly elongated NNW-SSE, 0.9'x0.7'. Contains a very small brighter nucleus, ~10" diameter. ************************************************************ NGC 3592 = UGC 06267 = MCG +03-29-011 = CGCG 096-011 = PGC 34248 11 14 27.5 +17 15 34 V = 13.7; Size 1.8x0.6; SB = 13.6; PA = 120d 17.5": surprisingly faint for listed magnitude, required averted and appeared as a 15" "knot" just 45" following a mag 14.5 star. Elongation not seen so I only viewed the brighter inner core of this edge-on system. Located 11' W of N3598. ************************************************************ NGC 3593 = UGC 06272 = MCG +02-29-014 = CGCG 067-040 = PGC 34257 11 14 37.0 +12 49 03 V = 10.9; Size 5.2x1.9; SB = 13.3; PA = 92d 17.5": bright, fairly large, very elongated 3:1 E-W, 3.2'x1.2'. Strong concentration from a faint outer halo to a prominent elongated core and a very small rounder nucleus. ************************************************************ NGC 3594 = UGC 06286 = MCG +09-19-022 = CGCG 267-058 = CGCG 268-011 = NPM1G +55.0115 = PGC 34374 11 16 14.0 +55 42 15 V = 13.7; Size 1.3x1.2; SB = 14.1; PA = 10d 17.5": faint, very small, round, bright core. A mag 11 star is 2.7' ENE. Discovered by William Herschel (III 770). Not observed by John Herschel. William's position is 0.6 tmin W and 2.5' N of U06286 = M+09-19-022. Corwin notes that his postion is also 12' from CGCG 268-6, which has a higher surface brightness and is a possible identification. See NGCBUGS. ************************************************************ NGC 3595 = UGC 06280 = MCG +08-21-009 = CGCG 242-014 = PGC 34325 11 15 25.5 +47 26 49 V = 12.1; Size 1.6x0.7; SB = 12.1; PA = 176d 17.5": moderately bright, fairly small, elongated 2:1 N-S. Sharp concentration with a very small bright core and much fainter extensions. Located 2.0' S of mag 7.4 SAO 43659! U06255 lies 19' NW. ************************************************************ NGC 3596 = UGC 06277 = MCG +03-29-013 = CGCG 096-013 = PGC 34298 11 15 06.2 +14 47 13 V = 11.3; Size 4.0x3.8; SB = 14.1 13.1": moderately bright, fairly large, diffuse, slightly elongated NW-SE, sharp stellar nucleus is possibly offset to the W of the geometric center. ************************************************************ NGC 3597 = ESO 503-003 = MCG -04-27-005 = PGC 34266 11 14 42.0 -23 43 39 V = 12.6; Size 1.9x1.5; SB = 13.6; PA = 65d 18" (3/19/04): moderately bright, fairly small, round, 0.8' diameter. Moderate even concentration to a very small bright core and stellar nucleus. A pair of mag 13 stars lie less than 2' NE of center. Located 5' SSW of mag 9.1 HD 97783. ************************************************************ NGC 3598 = UGC 06278 = MCG +03-29-014 = CGCG 096-014 = PGC 34306 11 15 11.6 +17 15 45 V = 12.3; Size 1.9x1.3; SB = 13.1; PA = 35d 17.5": fairly faint, fairly small, slightly elongated SW-NE, well-concentrated with a bright core steadily increasing to a faint stellar nucleus. The outer halo is ill-defined and much weaker. A mag 14 star is just off the N edge 0.6' from center and a pair of mag 13.5 stars is 4' ENE. N3592 lies 11' W. ************************************************************ NGC 3599 = UGC 06281 = MCG +03-29-015 = CGCG 096-015 = PGC 34326 11 15 27.0 +18 06 37 V = 12.0; Size 2.7x2.1; SB = 13.7; PA = 99d 17.5": moderately bright, moderately large, elongated ~4:3, 2.0'x1.5'. Contains a small, fairly bright round core which is concentrated to the center with a much lower surface brightness halo. Located 21' WNW of N3607 in a group. ************************************************************ NGC 3600 = UGC 06283 = MCG +07-23-038 = CGCG 213-038 = Mrk 1443 = PGC 34353 11 15 52.0 +41 35 28 V = 11.7; Size 4.1x0.9; SB = 12.9; PA = 3d 17.5": fairly faint, very elongated 3:1 N-S, 1.8'x0.6', small bright core, faint extensions. Two mag 12 stars lie 2.4' and 3.2' NNW of center. ************************************************************ NGC 3601 = UGC 06282 = MCG +01-29-024 = CGCG 039-091 = PGC 34335 11 15 33.3 +05 06 56 V = 13.8; Size 0.5x0.4; SB = 12.1 17.5": faint, small, irregularly round, 25"x20" diameter, even surface brightness. A mag 13 star lies 2.9' SSE. ************************************************************ NGC 3603 = ESO 129-SC16 = Cr 244 11 15 07 -61 15.7 V = 9.1; Size 12 13.1" (2/20/04 - Costa Rica): at 105x a bright irregular nebula surrounds a mag 9 "star". At 200x, a half-dozen very faint stars are packed very close to the central star. This very compact knot is actually a distant, very dense, young cluster of extremely luminous stars! Adding a UHC filter, the nebulosity is irregular at 105x, extending mostly south of the star and fading out into two or three sections possibly divided by a dark lane. The brightest section is to the southwest of the central star. 18" (7/7/02 - Magellan Observatory, Australia): at 228x this distant but superluminous HII region is a fascinating clump of stars of and nebulosity surrounding a bright 9th magnitude knot. The bright central region was extremely dense and contained 10-12 stars crammed into 2', yet it seemed only partially resolved at the very center into a couple of stars. At 128x and UHC filter, the surrounding "haze" is clearly gaseous in nature with the brightest portion offset to the SW side from the core with a roughly broad fan with a total size of roughly 5'x3'. A dark lane appears to cut through the nebulosity towards the core and there is a strong impression the field is riddled with dust lanes and patches. This is a well-studied highly reddened, distant, (>25,000 light years) luminous cluster and HII region with similarities to the Tarantula nebula in the LMC! ************************************************************ NGC 3604 = N3611 = U06305 = MCG +01-29-026 = CGCG 039-103 = PGC 34478 11 17 30.1 +04 33 19 See observing notes for N3611. Discovered by WH (II 626). There is no nebula at Herschel's place and this object was not recovered by Bigourdan. Dreyer states "should probably be rejected, together with III 88 (N3401) and III 598 (N3509), the only other neb this night as there was fog "which indeed was so strong to make everything swim about me." Herschel's position is 1.0 tmin W of N3611 and Carlson and Corwin equates these numbers. See NGCBUGS.. ************************************************************ NGC 3605 = UGC 06295 = MCG +03-29-019 = CGCG 096-019 = PGC 34415 11 16 46.6 +18 01 01 V = 12.3; Size 1.5x1.0; SB = 12.8; PA = 17d 13.1": fairly faint, small, round, small bright nucleus. In a group with brigtest member N3607 3.0' NE. ************************************************************ NGC 3607 = UGC 06297 = MCG +03-29-020 = CGCG 096-021 = PGC 34426 11 16 54.7 +18 03 06 V = 9.9; Size 4.9x2.5; SB = 12.5; PA = 120d 13.1": bright, slightly elongated, bright core, stellar nucleus. Brightest in a group with N3608 5.7' N, N3605 3.0' SW and N3599 21' WNW. ************************************************************ NGC 3608 = UGC 06299 = MCG +03-29-022 = CGCG 096-022 = PGC 34433 11 16 59.0 +18 08 55 V = 10.8; Size 3.2x2.6; SB = 13.0; PA = 75d 13.1": moderately bright, small, stellar nucleus. Appears slightly fainter than N3607 5.7' S. In a trio with N3605 and N3607. ************************************************************ NGC 3609 = UGC 06310 = MCG +05-27-043 = CGCG 156-050 = PGC 34511 11 17 50.5 +26 37 32 V = 13.1; Size 1.2x1.0; SB = 13.1; PA = 50d 17.5": faint, moderately large, round, 1.2' diameter. Weak concentration to a slightly brighter core. A mag 14 star is just off the S edge 50" from center and a second mag 14 star is 1.8' NW. A brighter mag 11 star lies 3.3' NE. Forms a pair with N3612 5.4' E. ************************************************************ NGC 3610 = UGC 06319 = MCG +10-16-107 = CGCG 291-048 = PGC 34566 11 18 25.3 +58 47 10 V = 10.8; Size 2.7x2.3; SB = 12.8 17.5": bright, small, slightly elongated NW-SE. Sharp concentration with a very small bright core and a faint halo! About 15' NNW is a small group of 7 stars including mag 9.0 SAO 27978. ************************************************************ NGC 3611 = UGC 06305 = MCG +01-29-026 = CGCG 039-103 = N3604 = Todd 1 = PGC 34478 11 17 30.1 +04 33 19 V = 12.1; Size 2.1x1.7; SB = 13.4 17.5": moderately bright, elongated 2:1 SSW-NNE, 1.2'x0.8'. Fairly sharp concentration with a rounder 30" core and a bright nearly stellar nucleus offset to the N side of the core. A mag 11 star is 3.2' NNW. ************************************************************ NGC 3612 = UGC 06321 = MCG +05-27-051 = CGCG 156-056 = PGC 34546 11 18 14.7 +26 37 13 V = 14.2; Size 1.0x0.8; SB = 13.8; PA = 160d 17.5": extremely faint, small, round, 20" diameter, low surface brightness. A mag 11 star lies 3.9' NW. Located 5.4' E of brighter N3609. ************************************************************ NGC 3613 = UGC 06323 = MCG +10-16-109 = CGCG 291-049 = PGC 34583 11 18 36.0 +58 00 00 V = 10.9; Size 3.9x1.9; SB = 13.0; PA = 102d 17.5": bright, moderately large, very elongated 3:1 WNW-ESE, very bright core, stellar nucleus. N3619 lies 15' SE. ************************************************************ NGC 3614 = UGC 06318 = MCG +08-21-015 = CGCG 242-019 = PGC 34561 11 18 21.3 +45 44 53 V = 11.6; Size 4.6x2.6; SB = 14.1; PA = 80d 17.5": faint, moderately large, weak concentration, slightly elongated 4:3 E-W with dimensions 2.5'x2.0', low surface brightness, edges fade gradually into background. Located on a line with a mag 13 star 3.5' E and a mag 12 star 5.1' W. ************************************************************ NGC 3615 = UGC 06313 = MCG +04-27-012 = CGCG 126-021 = PGC 34535 11 18 06.7 +23 23 50 V = 12.8; Size 1.4x0.9; SB = 13.1; PA = 40d 17.5": fairly faint, fairly small, elongated 2:1 SW-NE, 1.2'x0.6'. The prominent 20" core steadily increases to a stellar nucleus. First and brightest of a trio with N3618 7' NE and extremely faint CGCG 126-022 3.2' NE. ************************************************************ NGC 3617 = ESO 503-012 = MCG -04-27-008 = UGCA 231 = PGC 34513 11 17 50.9 -26 08 04 V = 12.8; Size 1.8x1.3; SB = 13.7; PA = 147d 18" (3/19/04): fairly faint, small, round , 30" diameter. Increases to a very small brighter nucleus. I probably only viewed the brighter core and missed the dim halo. ************************************************************ NGC 3618 = UGC 06327 = MCG +04-27-014 = CGCG 126-025 = Mrk 1288 = PGC 34575 11 18 32.6 +23 28 08 V = 13.6; Size 0.9x0.8; SB = 13.1; PA = 175d 17.5": faint, fairly small, round, 1.0' diameter, weak concentration. Third of three on a line with CGCG 126-022 and N3615 7' SW. At low power collinear with two mag 10 stars equally spaced 8' and 17' NE. ************************************************************ NGC 3619 = UGC 06330 = MCG +10-16-115 = CGCG 291-054 = PGC 34641 11 19 21.6 +57 45 29 V = 11.5; Size 2.7x2.3; SB = 13.4 17.5": fairly bright, moderately large, slightly elongated SW-NE, small bright core, stellar nucleus. Forms a pair with N3625 9.5' E and N3613 lies 16' NNW. 8": faint, small, round. ************************************************************ NGC 3621 = ESO 377-037 = MCG -05-27-008 = UGCA 232 = PGC 34554 11 18 16.0 -32 48 42 V = 9.7; Size 12.3x7.1; SB = 14.4; PA = 159d 17.5": bright, large, elongated 5:2 NNW-SSE, 6' diameter, weak central concentration and along the major axis but no sharp nucleus. Several stars are nearby; three mag 11-13 stars are off the N tip and two mag 10 stars are 2.7' SW and 3.7' SSE of center. ************************************************************ NGC 3622 = UGC 06339 = CGCG 314-020 = PGC 34692 11 20 12.5 +67 14 29 V = 13.2; Size 1.2x0.5; SB = 12.4; PA = 7d 17.5": moderately bright, elongated 2:1 N-S, 1.2'x0.6', elongated bright core. A mag 13.5 star is 1.5' SE of center. Located 9.3' NNW of mag 6.2 SAO 15478. ************************************************************ NGC 3623 = M65 = U06328 = MCG +02-29-018 = CGCG 067-054 = PGC 34612 11 18 55.3 +13 05 35 V = 9.3; Size 9.8x2.9; SB = 12.8; PA = 174d 17.5": very bright, very large, very elongated N-S, 7.5'x2.0', bright core, stellar nucleus. A mag 12 star is W of the S end 2.1' from the center. Forms a remarkable trio with M66 20' ESE and N3628 36' NE. Requires low power to view all three in same field. 13": very bright, elongated N-S, bright core, possible stellar nucleus. ************************************************************ NGC 3624 = MCG +01-29-029 = CGCG 039-114 = PGC 34599 11 18 50.9 +07 31 16 V = 13.9; Size 0.9x0.6; SB = 12.9; PA = 175d 17.5": very faint, diffuse glow with a brighter center. Halo fades into background, ~40" diameter. A mag 13 star lies 2.5' N. Forms a close pair with CGCG 039-113 2.1' SW. ************************************************************ NGC 3625 = UGC 06348 = MCG +10-16-120 = CGCG 291-057 = PGC 34718 11 20 31.2 +57 46 53 V = 13.1; Size 2.0x0.6; SB = 13.2; PA = 148d 17.5": faint, fairly small, very elongated NNW-SSE, weak concentration. Third of three with N3613 20' NW and N3619 9.4' W. ************************************************************ NGC 3626 = UGC 06343 = MCG +03-29-032 = CGCG 096-029 = N3632 = PGC 34684 11 20 03.9 +18 21 24 V = 11.0; Size 2.7x1.9; SB = 12.6; PA = 157d 17.5": bright, moderately large, elongated 3:2 NNW-SSE, 1.8'x1.2'. Strong, sharp concentration with a very small elongated core and a bright stellar nucleus. Located roughly 50' ENE of the N3607 group. ************************************************************ NGC 3627 = M66 = U06346 = MCG +02-29-019 = CGCG 067-057 = Arp 16 = VV 308 = PGC 34695 11 20 15.0 +12 59 22 V = 8.9; Size 9.1x4.2; SB = 12.7; PA = 173d 17.5": very bright, large, elongated N-S, 5'x3', bright elongated core. Two spiral arms are visible although the western arm is more prominent. 13": bright elongated core, stellar nucleus. A diffuse spiral arm extends S and a second short arm extends to the E. A dark patch is visible just E of the nucleus. ************************************************************ NGC 3628 = UGC 06350 = MCG +02-29-020 = CGCG 067-058 = Arp 317 = VV 308 = PGC 34697 11 20 16.2 +13 35 22 V = 9.5; Size 14.8x3.0; SB = 13.4; PA = 104d 17.5": bright, unusually large edge-on WNW-ESE, 11'x2.5'. A broad irregular dust lane is prominent bisecting the galaxy along the entire length. Appears brighter to the N of the dark lane and fainter on the S side. 13": dust lane clearly visible along length. ************************************************************ NGC 3629 = UGC 06352 = MCG +05-27-058 = CGCG 156-064 = Ho 247a = PGC 34719 11 20 31.7 +26 57 49 V = 12.1; Size 2.3x1.6; SB = 13.4; PA = 30d 18" (3/29/03): faint, moderately large, slightly elongated, 1.2'x0.9', diffuse, low surface brightness, weak broad concentration. A mag 14 star is 1.1' SE of center. ************************************************************ NGC 3630 = UGC 06349 = MCG +01-29-031 = CGCG 039-124 = N3645: = PGC 34698 11 20 17.0 +02 57 52 V = 11.9; Size 4.6x3.0; SB = 14.6; PA = 37d 17.5": fairly bright, fairly small, very elongated 3:1 SW-NE, small but very bright core, stellar nucleus, thin extensions. Located 10' NW of mag 8.3 SAO 118800 in the N3640 group. 8": faint, small, elongated SW-NE, very small bright core. Located ~20' SW of N3640. ************************************************************ NGC 3631 = UGC 06360 = MCG +09-19-047 = CGCG 268-021 = Arp 27 = VV 363 = PGC 34767 11 21 02.9 +53 10 10 V = 10.4; Size 5.0x4.8; SB = 13.7 17.5": bright, large, round, 3.5' diameter. Sharp concentration with a prominent core which brightens to a nearly stellar nucleus. The outer halo fades into the background and shows a hint of spiral arms. Two mag 12-13 stars are 3.4' NE and 3.3' WNW of center. ************************************************************ NGC 3632 = N3626 = U06343 = MCG +03-29-032 = CGCG 096-029 = PGC 34684 11 20 03.9 +18 21 24 See observing notes for N3626. Discovered by WH (II 30). In Scientific Papers of WH Dreyer states "not seen by d'A (5 times), is no doubt =II 52 = N3626 only 24s p and 12' N. The latter was observed 14 Mar 1784, a neb like II 51 but a little longish." This conclusion is repeated by Reinmuth and Father Hagen. ************************************************************ NGC 3633 = UGC 06351 = MCG +01-29-032 = CGCG 039-126 = PGC 34711 11 20 26.2 +03 35 08 V = 13.6; Size 1.2x0.4; SB = 12.6; PA = 72d 17.5": faint, fairly small, very elongated 3:1 WSW-ENE, weak concentration. A mag 14 star is off the W edge. Located 3.5' WSW of mag 8.9 SAO 118799. N3640 lies 21' SSE. Member of N3640 group. ************************************************************ NGC 3635 = MCG -01-29-009 = VV 724 = NPM1G -08.0342 = PGC 34717 11 20 31.4 -09 00 49 V = 13.4; Size 1.7x0.6; SB = 13.3; PA = 18d 17.5": faint, small, elongated 3:2 NNW-SSE, 0.7'x0.4', weak concentration. Forms an interacting pair with N3634 on the west edge (not seen). A mag 14.5 star lies 1' W. ************************************************************ NGC 3636 = MCG -02-29-019 = PGC 34709 11 20 25.1 -10 16 55 V = 12.4; Size 1.3x1.3; SB = 13.0 17.5": moderately bright, very small, bright core, round. Located just 1.8' NW of mag 6.6 SAO 156618! Forms a pair with similar galaxy N3637 3.8' ENE. ************************************************************ NGC 3637 = MCG -02-29-020 = PGC 34731 11 20 39.5 -10 15 27 V = 12.7; Size 1.6x1.5; SB = 13.6 17.5": moderately bright, very small, bright core, round. Located 3.0' NE of mag 6.6 SAO 156618. Forms a pair with N3636 3.8' WSW. ************************************************************ NGC 3638 = MCG -01-29-007 = PGC 34688 11 20 10.0 -08 06 21 V = 13.4; Size 2.2x0.7; SB = 13.7; PA = 141d 17.5": faint, fairly small, elongated 2:1 NW-SE, 1.2'x0.6', brighter along the major axis. With averted vision, there are hints of longer extensions. Forms the western vertex of a right triangle with two mag 12 stars 3.4' E and 4.3' NE. ************************************************************ NGC 3640 = UGC 06368 = MCG +01-29-033 = CGCG 039-130 = PGC 34778 11 21 06.8 +03 14 05 V = 10.4; Size 4.0x3.2; SB = 13.2; PA = 100d 17.5": bright, moderately large, small very bright core, oval halo 3:2 E-W, 15" substellar mottled nucleus. A mag 14 star is 2.3' N. Brightest in a group and forms a close pair with N3641 2.5' SSE. 8": bright, moderately large, bright core, slightly elongated. ************************************************************ NGC 3641 = UGC 06370 = MCG +01-29-034 = PGC 34780 11 21 08.8 +03 11 40 V = 13.2; Size 1.1x1.1; SB = 13.3 17.5": faint, very small, round, faint stellar nucleus. Forms a close pair with bright N3640 2.6' NNW. ************************************************************ NGC 3642 = UGC 06385 = MCG +10-16-128 = CGCG 291-062 = PGC 34889 11 22 17.9 +59 04 28 V = 11.2; Size 5.4x4.5; SB = 14.5; PA = 105d 17.5": bright, fairly large, round, even concentration down to a very bright core, faint stellar nucleus. Appears mottled (knot?) on the west side of the core. ************************************************************ NGC 3643 = MCG +01-29-036 = CGCG 039-136 = PGC 34802 11 21 25.0 +03 00 50 V = 14.1; Size 0.8x0.3; SB = 12.4 17.5": very faint, fairly small, elongated 2:1 NW-SE. A mag 13 star is at the SE edge 1.0' from center. N3644 lies 12' S. Marth's position matches M+01-29-036 = CGCG 039-136. RNGC appears to have misidentified N3643; the position falls close to N3645 which is actually a duplicate observation of N3630 (see article by Alister Ling and RNGC Corrections #2). Corwin sorts things out in NGCBUGS. ************************************************************ NGC 3644 = UGC 06373 = MCG +01-29-037 = CGCG 039-139 = IC 684 = PGC 34814 11 21 32.9 +02 48 37 V = 13.7; Size 1.5x0.7; SB = 13.6; PA = 63d 17.5": faint, small, elongated 3:2 WSW-ENE. A mag 13 star is at the SW edge 0.6' from center. Located 12' ESE of mag 8.3 SAO 118800 in the N3640 group with N3643 12' N. ************************************************************ NGC 3645 = N3630: = U06349 = MCG +01-29-031 = CGCG 039-124 = PGC 34817 11 20 17.0 +02 57 52 See observing notes for N3630. Discovered by WH (II 32) and placed 6.5 tmin W and 7' N of 84 (Tau) Leo. This position is 1 min 10 sec following h861 = N3630. The identification of II 32 is discussed in detail by Malcolm Thomson in WSQJ #73, Alister Ling in WSQJ #87 and Harold Corwin in NGCBUGS. It is concluded that II 32 is a duplicate observation of N3630, although in the NGC notes, Dreyer states "N3645 ? N3630". RNGC and CGCG misidentify N3645 as CGCG 39-143 (15.5z) although this galaxy is certainly too faint to be II 32. ************************************************************ NGC 3646 = UGC 06376 = MCG +03-29-037 = CGCG 096-034 = PGC 34836 11 21 43.1 +20 10 10 V = 11.1; Size 3.9x2.2; SB = 13.3; PA = 50d 17.5": moderately bright, fairly large, elongated 3'x2' NW-SE. Gradually increases to a brighter 30" oval core. A quasi-stellar nucleus is occasionally visible with direct vision. Forms a pair with N3649 7.8' ENE. 13": moderately bright and large, elongated, broad concentration with no nucleus. An extremely faint star or knot is involved. ************************************************************ NGC 3648 = UGC 06389 = MCG +07-23-043 = CGCG 213-043 = CGCG 214-002 = LGG 236- 001 = PGC 34908 11 22 31.5 +39 52 37 V = 12.6; Size 1.3x0.8; SB = 12.5; PA = 75d 18" (5/30/03): fairly faint, fairly small, elongated 3:2 WSW-ENE, 0.9'x0.6'. Contains a small, round, bright core with a quasi-stellar nucleus. Located 18' S of mag 6.6 SAO 43717 and 7' ESE of mag 9.7 SAO 43713. ************************************************************ NGC 3649 = UGC 06386 = MCG +03-29-038 = CGCG 096-036 = IC 682 = PGC 34883 11 22 14.8 +20 12 30 V = 13.7; Size 1.2x0.6; SB = 13.2; PA = 140d 17.5": faint, small, elongated 3:2 SW-NE, 0.6'x0.4' (viewed oval core only). A mag 14.5 star is just off the south edge [23" from center]. Forms a pair with N3646 7.8' WSW. ************************************************************ NGC 3650 = UGC 06391 = MCG +04-27-031 = CGCG 126-043 = PGC 34913 11 22 35.4 +20 42 15 V = 13.9; Size 1.7x0.3; SB = 13.0; PA = 54d 17.5": fairly faint, fairly small, edge-on 5:1 SW-NE, 1.0'x0.2', irregular surface brightness, small brighter core. Situated 2.7' SE of a mag 11 star. ************************************************************ NGC 3651 = UGC 06388 = MCG +04-27-028 = CGCG 126-042n = HCG 51a = PGC 34898 11 22 26.3 +24 17 56 V = 13.2; Size 1.1x1.1; SB = 13.4 17.5": this is the brightest member of the HCG 51 quintet. Fairly faint, fairly small, slightly elongated N-S, 1.0'x0.8', small brighter core. Forms a small isosceles triangle with N3653 (51C) 1.4' SE and M+04-27-030 (51D) 1.0' E. M+04- 27-026 (51B) lies 2.7' W which is a close pair with brighter IC 2759 (51E) 1' N. ************************************************************ NGC 3652 = UGC 06392 = MCG +06-25-055 = CGCG 185-049 = LGG 236-002 = PGC 34917 11 22 39.0 +37 45 54 V = 12.2; Size 2.0x0.7; SB = 12.4; PA = 150d 18" (5/30/03): moderately bright, moderately large, elongated 2:1 NNW-SSE, 1.0'x0.5'. Contains a bulging core and much fainter extensions. ************************************************************ NGC 3653 = MCG +04-27-029 = CGCG 126-044 = NPM1G +24.0240 = HCG 51c = PGC 34905 11 22 30.0 +24 16 45 V = 13.6; Size 0.9x0.6; SB = 12.8; PA = 85d 17.5": faint, small, slightly elongated E-W, 30" diameter, stellar nucleus. Second brightest in HCG 51 quintet with brightest member N3651 1.4' NW. ************************************************************ NGC 3654 = UGC 06407 = MCG +12-11-022 = CGCG 334-029 = PGC 35025 11 24 10.9 +69 24 47 V = 12.7; Size 1.2x0.6; SB = 12.3; PA = 27d 17.5": fairly faint, fairly small, elongated 2:1 SW-NE, brighter along the major axis, very small bright core. Situated midway betwen a mag 12 star 3.1' NE and a mag 13 star 3.4' SW of center. ************************************************************ NGC 3655 = UGC 06396 = MCG +03-29-039 = CGCG 096-037 = PGC 34935 11 22 54.7 +16 35 24 V = 11.6; Size 1.5x1.0; SB = 12.0; PA = 30d 17.5": fairly bright, fairly small, elongated 3:2 SSW-NNE, prominent core, stellar nucleus, fainter extensions, high surface brightness. A mag 12.5 star is 2.5' ENE. 8": fairly bright, bright core, slightly elongated. Located 45' WNW of a mag 6 star. ************************************************************ NGC 3656 = UGC 06403 = MCG +09-19-063 = CGCG 268-029 = Arp 155 = VV 22a = PGC 34989 11 23 38.5 +53 50 32 V = 12.5; Size 1.6x1.6; SB = 13.4; PA = 7d 18" (5/30/03): moderately bright, round, fairly small, 0.8' diameter, fairly weak concentration with a brighter core. A mag 11-12 star is just off the west side, 45" from center. ************************************************************ NGC 3657 = UGC 06406 = MCG +09-19-065 = CGCG 268-030 = LGG 241-010 = PGC 35002 11 23 55.6 +52 55 15 V = 12.4; Size 1.4x1.4; SB = 13.1 18" (5/30/03): moderately bright, fairly small, round, 0.7' diameter, small bright core. ************************************************************ NGC 3658 = UGC 06409 = MCG +07-24-002 = CGCG 214-003 = LGG 236-003 = PGC 35003 11 23 58.3 +38 33 45 V = 12.2; Size 1.6x1.5; SB = 13.0 18" (5/30/03): moderately bright, moderately large, round, 1.0' diameter, small bright core, symmetrical appearance. Located 15' SW of N3665 and 9' SE of mag 9 SAO 62530. ************************************************************ NGC 3659 = UGC 06405 = MCG +03-29-040 = CGCG 096-038 = PGC 34995 11 23 45.3 +17 49 04 V = 12.3; Size 2.1x1.1; SB = 13.0; PA = 60d 13.1": fairly faint, fairly small, weak concentration, elongated WSW-ENE. ************************************************************ NGC 3660 = MCG -01-29-016 = UGCA 234 = Mrk 1291 = PGC 34980 11 23 32.2 -08 39 31 V = 11.9; Size 2.9x2.2; SB = 13.7; PA = 110d 18" (3/19/04): fairly faint, fairly large, round, ~2' diameter with averted vision, broad concentration but then suddenly increases to a small nucleus. A faint star is off the W edge 1' from center. A trio of mag 10-12 stars follows by ~5'. Located 19' NE of mag 6.9 HD 98853. ************************************************************ NGC 3661 = MCG -02-29-022 = IC 689 = PGC 34986 11 23 38.4 -13 49 51 V = 14.0; Size 1.7x0.8; SB = 14.2; PA = 137d 17.5": faint, very elongated NW-SE. A string of three mag 11 stars begins 1.6' S and continues to the SE. N3667 lies 10' E. ************************************************************ NGC 3662 = UGC 06408 = MCG +00-29-025 = CGCG 011-086 = PGC 34996 11 23 45.6 -01 06 12 V = 12.9; Size 1.4x0.9; SB = 13.0; PA = 25d 17.5": fairly faint, fairly small, elongated 4:3 ~SSW-NNE, 1.0'x0.7'. There is a fairly bright star ~mag 13.5 which is superimposed about 10" NE from the geometric center and appears similar to a bright stellar nucleus. ************************************************************ NGC 3663 = MCG -02-29-023 = PGC 35006 11 23 59.8 -12 17 47 V = 12.5; Size 2.1x1.6; SB = 13.7; PA = 85d 17.5": faint, fairly small, oval E-W, low even surface brightness. Two mag 13 and 15 stars are at the NE edge 39" and 57" from the center, respectively. ************************************************************ NGC 3664 = UGC 06419 = MCG +01-29-041 = CGCG 039-170 = Arp 5 = VV 251 = VIII Zw 146 = LGG 233-004 = PGC 35041 11 24 24.8 +03 19 39 V = 12.8; Size 2.0x1.9; SB = 14.1 17.5": fairly large, low surface brightness glow with just a weak concentration, ~2' diameter. Nearly collinear with a wide pair of mag 10.5/12.5 stars 3' SE with a mag 10.5 star 7' NW also on this line. In addition, three mag 13 stars to the east are collinear! Located 20' W of a mag 6.7 star. This Arp galaxy is an an unusual one?armed spiral with a faint outer ring. ************************************************************ NGC 3665 = UGC 06426 = MCG +07-24-003 = CGCG 214-004 = LGG 236-004 = PGC 35064 11 24 43.7 +38 45 47 V = 10.8; Size 2.5x2.0; SB = 12.4; PA = 30d 18" (5/30/03): bright, fairly large, elongated 3:2 SSW-NNE, 2.4'x1.6', strong concentration with a very bright core which increases to the center. A mag 14.5 star lies 1.6' N of center, outside the halo. N3658 lies 15' SW. 17.5" (5/2/92): very bright, fairly large, elongated 2:1 SSW-NNE, 2.5'x1.3', increases to very bright core, stellar nucleus, fainter elongated halo. A mag 15 star is off the N edge. Discovered by WH (I 219). The NGC position is correct but there is a misprint in the declination in the RNGC which is listed as 2 deg 54' instead of 38 deg 54'. ************************************************************ NGC 3666 = UGC 06420 = MCG +02-29-025 = CGCG 067-071 = PGC 35043 11 24 26.2 +11 20 31 V = 12.0; Size 4.4x1.2; SB = 13.7; PA = 100d 13.1": fairly faint, elongated ~E-W, bright core, sharper light cut off on the E side. A mag 14 star is 1.5' NNE of center. Located 9' SW of mag 5.8 SAO 99598. ************************************************************ NGC 3667 = MCG -02-29-025 = NPM1G -13.0324 = RN3667A = PGC 35028 11 24 17.0 -13 51 26 V = 12.7; Size 1.5x1.0; SB = 12.4; PA = 85d 17.5": moderately bright, very small, round, small bright nucleus. Forms a close pair with N3667B = M-02-29-026 1.1' E. N3661 lies 10' W. ************************************************************ NGC 3667B = MCG -02-29-026 = PGC 35034 11 24 21.5 -13 51 21 V = 13.5; Size 1.4x0.6; SB = 13.2; PA = 40d 17.5": faint, very small, round, low surface brightness. Located 1' E of N3667. ************************************************************ NGC 3668 = UGC 06430 = MCG +11-14-023 = CGCG 314-026 = PGC 35123 11 25 30.4 +63 26 46 V = 12.3; Size 1.7x1.3; SB = 13.1; PA = 137d 17.5": moderately bright, moderately large, elongated 3:2 NW-SE, 1.5'x1.0', mottled appearance. Well concentrated with an elongated core and a bright nucleus. A mag 15 star is superimposed at the NW end 0.6' from center (companion?). Located 2.6' NE of a mag 10 star. Forms a pair with M+11-14-25a 9.7' E at edge of the 225x field. ************************************************************ NGC 3669 = UGC 06431 = MCG +10-16-135 = CGCG 291-067 = PGC 35113 11 25 26.7 +57 43 17 V = 12.4; Size 2.2x0.5; SB = 12.5; PA = 153d 17.5": fairly faint, moderately large, edge-on 4:1 NNW-SSE, even surface brightness. ************************************************************ NGC 3670 = UGC 06427 = MCG +04-27-033 = CGCG 126-048 = PGC 35067 11 24 49.7 +23 56 43 V = 13.5; Size 1.1x0.7; SB = 13.0; PA = 35d 18" (5/31/03): fairly faint, fairly small, slightly elongated SW-NE, 0.7'x0.5'. Moderate concentration with faint extensions and a small, brighter core. ************************************************************ NGC 3671 = CGCG 291-068= NPM1G +60.0100 = PGC 35149 11 25 52.5 +60 28 46 V = 14.6; Size 0.5x0.4; PA = 10d 17.5": extremely faint and small, round. A mag 14.5 star is close E. Discovered by WH (III 922). JH's position (h885) matches CGCG 291-068 although his description reads "This must be my father's neb, but it is a suspicious object and I doubt whether it be not a little knot of 3 or 5 stars." My visual description mentions a mag 14.5 star close following. This galaxy is not in MCG or RC3. ************************************************************ NGC 3672 = MCG -02-29-028 = UGCA 235 = PGC 35088 11 25 02.5 -09 47 40 V = 11.4; Size 4.2x1.9; SB = 13.5; PA = 8d 17.5": fairly bright, fairly large, oval 2:1 N-S, weakly concentrated to the center. 8" (5/82): faint, diffuse. Located 20' W of a mag 7.5 star. ************************************************************ NGC 3673 = ESO 503-016 = MCG -04-27-010 = UGCA 236 = PGC 35097 11 25 12.8 -26 44 12 V = 11.5; Size 3.6x2.4; SB = 13.7; PA = 70d 18" (3/19/04): moderately bright, moderately large, elongated 3:2 ~E-W, 2.0'x1.4', broad concentration to halo. Appears brighter along the major axis like a bar (verified on the DSS) with a very small brighter core. Two mag 11.5 and 13 stars following closely, 2' and 1.5' from the center. Located 8' N of mag 8.7 SAO 179863. 18" (3/19/04): moderately bright, fairly large, elongated nearly 2:1 WSW-ENE. Contains a bright 45" elongated core embedded in a much faint halo, ~2.5'x1.5'. Within the halo is the strong impression of a bar and the galaxy is locally brighter immediately following the bar. ************************************************************ NGC 3674 = UGC 06444 = MCG +10-16-138 = CGCG 291-069 = PGC 35191 11 26 26.6 +57 02 54 V = 12.2; Size 1.9x0.6; SB = 12.4; PA = 33d 17.5": moderately bright, small, very elongated SSW-NNE, small bright core, stellar nucleus. N3683 lies 13.6' SE. ************************************************************ NGC 3675 = UGC 06439 = MCG +07-24-004 = CGCG 214-005 = PGC 35164 11 26 07.8 +43 35 06 V = 10.2; Size 5.9x3.1; SB = 13.2; PA = 178d 17.5": very bright, fairly large, elongated 5:2 N-S, 4'x1.5', very bright sharply defined elongated core, substellar nucleus. A mag 13 star is at the SSW edge 2.0' from the center. A dust lane is evident by a sharper light cut-off along the E side of the core. ************************************************************ NGC 3677 = UGC 06441 = MCG +08-21-035 = CGCG 242-035 = NPM1G +47.0198 = PGC 35181 11 26 17.7 +46 58 26 V = 12.3; Size 1.9x1.7; SB = 13.4; PA = 130d 18" (5/30/03): fairly faint, fairly small, elongated 4:3 NW-SE, 0.8'x0.6'. Weak, even concentration to a small, brighter core. Collinear with two mag 11 stars 4' and 6' NNE. ************************************************************ NGC 3678 = UGC 06443 = MCG +05-27-071 = CGCG 156-075 = PGC 35177 11 26 15.7 +27 52 01 V = 13.6; Size 0.8x0.8; SB = 13.0 18" (3/29/03): faint, fairly small, round, 0.7' diameter, fairly even surface brightness. ************************************************************ NGC 3679 = MCG -01-29-021 = Mrk 1294 = PGC 35165 11 26 08.6 -05 35 09 Size 1.0x0.5; PA = 178d 18" (3/19/04): fairly faint, small, elongated 5:2 N-S, 0.7'x0.3', fairly even surface brightness. Three mag 14 stars are within 2'. Located 4.6' SSE of a mag 10 star. The NGC identification is very uncertain and may apply to MCG -01- 29-012 Discovered by WH (III 112) on the same night by as N3915 (sweep 205, 24 April 1784), neither of which match galaxies in the sky. Dreyer gives an approximate position in NGC due to uncertainty with his reference star. See Notes section of NGC. William mentions a "vB star near" but there is no bright star near M- 01-29-021 which RNGC identifies as N3679. Furthermore, the NGC position is 16' S of M-01-29-021 (MCG does not make the NGC identification) and WH's original offset is 20' S of this galaxy, so this identification seems unlikely. In the IC I notes, the position is revised by Spitaler who found nothing at the NGC or Auwer's position. See Corwin's extensive discussion in NGCBUGS where he suggests that N3679 might be M-01-29-012 which is 2.4' S of of mag 7.9 SAO 138156. ************************************************************ NGC 3680 = Cr 247 = E265-SC032 11 25 37 -43 15.0 V = 7.6; Size 12 13.1" (2/18/04 - Costa Rica): scattered group of a dozen stars at 105x in 7' but with an interesting arrangement as many of the stars are arranged into two intersecting lanes crossing at a right angle. Includes a few mag 10-10.5 stars. ************************************************************ NGC 3681 = UGC 06445 = MCG +03-29-048 = CGCG 096-045 = PGC 35193 11 26 29.8 +16 51 48 V = 11.2; Size 2.5x2.0; SB = 12.8; PA = 170d 13.1": moderately bright, round, brighter core, stellar nucleus. On a line with two stars mag 11 and 12 3.0' NE and 4.7' NE. First of four in the N3686 group with N3684 14' NNE, N3691 24' ENE and N3686 28' NE. ************************************************************ NGC 3682 = UGC 06459 = MCG +11-14-027 = CGCG 314-029 = PGC 35266 11 27 41.2 +66 35 23 V = 12.5; Size 1.7x1.1; Surf Br = 13.0; PA = 95d 18" (3/30/05): moderately bright, small, slightly elongated E-W, ~0.6'x0.45'. Sharply concentrated with a very small, very bright, 20" core and a much fainter halo. Located on the Draco-Ursa Major border. ************************************************************ NGC 3683 = UGC 06458 = MCG +10-16-143 = CGCG 291-072 = PGC 35249 11 27 32.0 +56 52 37 V = 12.5; Size 1.9x0.7; SB = 12.6; PA = 128d 17.5": moderately bright, moderately large, very elongated NW-SE, small bright core. I In a low power field with N3674 14' NW and N3683A 21' NE. ************************************************************ NGC 3683A = UGC 06484 = MCG +10-17-006 = CGCG 291-075 = PGC 35376 11 29 11.7 +57 07 57 V = 11.9; Size 2.3x1.7; SB = 13.3; PA = 75d 17.5": moderately bright, moderately large, oval ~SW-NE, broad concentration. A mag 13 star is at the NE edge. ************************************************************ NGC 3684 = UGC 06453 = MCG +03-29-050 = CGCG 096-047 = PGC 35224 11 27 11.2 +17 01 48 V = 11.4; Size 3.1x2.1; SB = 13.3; PA = 130d 13.1": moderately bright, slightly elongated NW-SE, broad concentration. Second of three on a line with N3681 14' SW and N3686 14' NE. Also, N3691 lies 15' SE. ************************************************************ NGC 3686 = UGC 06460 = MCG +03-29-051 = CGCG 096-049 = PGC 35268 11 27 44.1 +17 13 26 V = 11.3; Size 3.2x2.5; SB = 13.5; PA = 15d 13.1": brightest and largest in a group with N3681, N3684 and N3691. Elongated 4:3 ~N-S, 3.0'x2.4', brighter core. An extremely faint star or knot is involved. A mag 11 star lies 2.6' N of center. N3684 is 14' SSW and N3691 19' SSE. ************************************************************ NGC 3687 = UGC 06463 = MCG +05-27-073 = CGCG 156-078 = Mrk 736 = PGC 35285 11 28 00.6 +29 30 39 V = 12.0; Size 1.9x1.9; SB = 13.3 18" (3/29/03): fairly faint, fairly small, round. Seems to have an irregular surface brightness with a very small, slightly brighter condensation in the halo. ************************************************************ NGC 3689 = UGC 06467 = MCG +04-27-037 = CGCG 126-057 = PGC 35294 11 28 11.0 +25 39 41 V = 12.3; Size 1.7x1.1; SB = 12.9; PA = 97d 17.5": moderately bright, oval 5:3 ~E-W, ~1.3'x0.8', broadly concentration to a brighter core. The core brightens but no distinct nucleus. 8": faint, round. ************************************************************ NGC 3690 = UGC 06471/2 = MCG +10-17-003 = CGCG 291-073 = VV 118a/b = Arp 299 = Mrk 171a/b = PGC 35321 11 28 31.9 +58 33 45 V = 11.5; Size 2.0x1.5; SB = 12.6; PA = 50d 17.5": N3690 forms a disrupted interacting system (Arp 299) with IC 694 close NW. This unusual system appears moderately bright, fairly small, elongated E-W. The appearance is confusing with two very small "knots" in a common halo elongated E-W (20" between centers). On the west side is a fairly bright virtually stellar "knot" which is probably the nucleus of the brighter member N3690. There is a small fainter unconcentrated extension on the following end and the two components are not individually resolved. With averted vision an extremely faint spot (this may be the "real" IC 694) is intermittently visible about 1' NW. 17.5": fairly bright, moderately large, elongated ~E-W, irregular, mottled appearance. A mag 14 star is superimposed on the west side and an extremely faint mag 15.5 star or knot is involved. This is a disrupted interacting system which includes IC 694. Discovered by WH (I 247). See the short article on identifications by Murray Cragin in April 1993 Deep-Sky Observer (Webb Society). N3690 and IC 694 are part of an interacting system oriented E-W without well-defined centers. IC 694 appears to apply to an extremely faint 16th mag companion 1.1' NW of the N3690 system within the outer halo. See visual observation of IC 694. ************************************************************ NGC 3691 = UGC 06464 = MCG +03-29-053 = CGCG 096-050 = PGC 35292 11 28 09.4 +16 55 11 V = 11.8; Size 1.3x1.0; SB = 12.0; PA = 15d 13.1": fairly faint, slightly elongated, moderately large, even surface brightness. Last of four in the N3686 group. Located 19' SSE of N3686 and 15' SE of N3684. ************************************************************ NGC 3692 = UGC 06474 = MCG +02-29-032 = CGCG 067-084 = PGC 35314 11 28 24.0 +09 24 27 V = 12.1; Size 3.2x0.7; SB = 12.9; PA = 95d 17.5": fairly faint, thin edge-on 5:1 E-W, 2.0'x0.4', very small bright core. A mag 13 star is off the NE edge 2.3' from the center. N3705 lies 26' ESE. ************************************************************ NGC 3693 = MCG -02-29-032 = NPM1G -12.0359 = PGC 35299 11 28 11.5 -13 11 41 V = 12.3; Size 3.7x0.8; SB = 13.3; PA = 85d 17.5": faint, fairly small, very elongated 4:1 E-W, very small bright core. A mag 12 star is 3.3' WSW. Located 10' SE of mag 8.3 SAO 156691. ************************************************************ NGC 3694 = UGC 06480 = MCG +06-25-076 = CGCG 185-070 = PGC 35352 11 28 54.1 +35 24 50 V = 12.9; Size 0.7x0.6; SB = 11.8; PA = 120d 17.5": fairly faint, small, irregularly round, 30"-40" diameter, bright core, stellar nucleus at moments. Brightest in a pretty similar trio of N3695 11' NNE and N3700 11' NE (both with uncertain NGC identifications). ************************************************************ NGC 3695 = UGC 06490 = MCG +06-25-078 = CGCG 185-071 = N3698 = PGC 35389 11 29 17.3 +35 34 31 V = 14.0; Size 1.0x0.6; SB = 13.3; PA = 10d 17.5": faint, fairly small, elongated 3:2 ~NNW-SSE, 1.0'x0.7'. Weak even concentration to a slightly brighter core and occasional stellar nucleus with direct vision at 280x. A mag 14 star lies 1.7' SE. In a trio with N3694 11' SSW and N3700 5.7' SE. Discovered by Ball at Birr Castle on 31 Mar 1867 in the observation of N3694. Described as "3 F Neb forming a triangle certainly seen here and one or more susp in the neighborhood. There being no great difference in brightness, it is not easy to see which is h899. The 2 nf ones, pos 310?, dist 339" [5564 and 5566]." The relative position for the latter two exactly match N3695 = GC 5564 = U6490 and N3700 = GC 5566 = U6494. But on 18 Mar 1876 Dreyer reobserved N3694 and stated "nnp is a pS, eeF neb [=5564] in PA 357.2?, Dist 256.7"." This was the position Dreyer used in NGC for N3695, although it corresponds with mag 14.8 GSC star at 11 28 53.1 +35 29 00 (2000). In the same observation, Dreyer notes "about 15' n and a few minutes f is another eF, vS neb [5565] with an ef* 2' sf." Apparently he felt this object was not observed on 31 Mar 1867 so it was given a separate designation, GC 5565 = N3698, but this rough description appears to describe U6490 = N3695 which has a mag 14.4 GSC star 1.7' SE. So, it seems likely that N3698 is a duplicate observation of N3695. Reinmuth identifies U6490 as N3698 and misidentifies N3695 with the faint star 4.1' N of N3694 given by Dreyer. ************************************************************ NGC 3697 = UGC 06479 = MCG +04-27-042 = CGCG 126-061 = HCG 53a = Ho 258a = PGC 35347 11 28 50.4 +20 47 43 V = 13.1; Size 2.3x0.7; SB = 13.5; PA = 93d 17.5": brightest of three in the HCG 53. Fairly faint, moderately large, very elongated 3:1 E-W, weak even concentration. A mag 11.5 star is 3.6' W and a mag 13 star 1.8' SE. The mag 13 star is on a line midway to a pair of close companions M+04-27-044 (HCG 53B) 4.0' SE and M+04-27-045 (HCG 53C) 3.3' SE. IC 700 lies 13.9' SSE. ************************************************************ NGC 3698 = N3695 = U06490 = MCG +06-25-078 = CGCG 185-071 = PGC 35389 11 29 17.3 +35 34 31 See observing notes for N3695. ************************************************************ NGC 3699 = PK 292+1.1 = E129-PN21 = PN G292.6+01.2 11 27 58.4 -59 57 37 V = 11.0; Size 71" 13.1" (2/17/04 - Costa Rica): at 100x, this planetary appeared moderately bright and large, ~60"-65" in size. There was a good contrast gain with a UHC filter at 105x and 166x and it appeared brightest on the north side of the planetary. A dark rift running WSW-ENE appears to nearly detach the smaller and fainter southern section. 18" (7/7/02 - Magellan Observatory, Australia): at 128x this interesting planetary is moderately bright, fairly large, ~70" in diameter with some faint stars superimposed. With the UHC filter the appearance is very unusual with a dark rift bisecting it in a WSW-ENE orientation just below the geometric center. At 228x, the northern "hemisphere" is both larger and brighter with an irregular surface brightness. A mag 13 star is ~1' NW. This is a fascinating planetary set in a beautiful Centaurus star field with an appearance similar to faint HII region or a small version of Cen A! ************************************************************ NGC 3700 = UGC 06494 = MCG +06-25-079 = CGCG 185-073 = PGC 35413 11 29 38.6 +35 30 53 V = 14.0; Size 1.0x0.7; SB = 13.6; PA = 130d 17.5": faint, fairly small, elongated 3:2 ~N-S, 1.0'x0.7', weak concentration. Similar to N3695 5.7' NW and third in trio with N3694. The orientation given matches the main bar - a fainter outer ring oriented NW-SE was not seen. Discovered by Ball at Birr Castle on 31 Mar 1867 in the observation of N3694. The NGC position for N3700 is 20 tsec W and 6' S of U06494 = M+06-25-079 = CGCG 185-073. Ball also states "the 2 nf ones, Pos 310, Dist 339" [N3695 and N3700] which precisely matches the separation and position angle of U06480 and U06494. This suggests N3694 = U06480 and N3700 = U06494. ************************************************************ NGC 3701 = UGC 06493 = MCG +04-27-048 = CGCG 126-068 = PGC 35405 11 29 28.9 +24 05 36 V = 12.9; Size 1.9x0.9; Surf Br = 13.4; PA = 145d 18" (4/9/05): fairly faint, fairly small, elongated 2:1 NNW-SSE, 1.0'x0.5', weak concentration with a central bulge. A mag 14 star lies 0.9' N of center. ************************************************************ NGC 3702 = MCG -01-29-026 = PGC 35448 11 30 13.4 -08 51 47 V = 14.2; Size 1.4x0.9; SB = 14.3; PA = 158d 17.5": faint, small, slightly elongated, even surface brightness. Leavenworth's position (II) is 1.0 tmin W and 8' S of M-01-29-026 (identified as N3702 in RNGC but not MCG). Leavenworth describes two mag 10 stars 30 tsec W and 30 tsec E. There is a mag 9-10 star 20 tsec ENE and a mag 13 GSC star 20 tsec W so this identification is very uncertain. Listed as a dubious object by Hagen (probably not found). ************************************************************ NGC 3704 = MCG -02-29-037 = NPM1G -11.0300 = PGC 35435 11 30 04.6 -11 32 47 V = 13.5; Size 1.5x1.3; SB = 14.1; PA = 150d 17.5": fairly faint, very small, round, bright core. A mag 15 star is 42" E of center. Forms a close pair with N3707 1.7' E. Located 2.6' ESE of a mag 10 star. Common's position is 13' N (rough positions given in his discovery list in Copernicus 1) of M-02-29-037 = NPM1G -11.0300 but his description is a perfect match for this pair (with N3707). This galaxy was independently found by Temple (V). Howe could only find one nebula on 4 nights of searching. The RNGC/MCG position is 2' too far north. ************************************************************ NGC 3705 = UGC 06498 = MCG +02-29-039 = CGCG 067-093 = PGC 35440 11 30 07.4 +09 16 37 V = 11.1; Size 4.9x2.0; SB = 13.4; PA = 122d 17.5": bright, fairly large, small bright core, elongated 5:2 WNW-ESE, 4.0'x1.6'. N3692 lies 26' WNW. ************************************************************ NGC 3706 = ESO 378-006 = MCG -06-25-022 = PGC 35417 11 29 44.4 -36 23 29 V = 11.3; Size 3.0x1.8; SB = 13.1; PA = 78d 13.1" (2/17/04 - Costa Rica): at 166x, moderately bright, moderately large, elongated 3:2 WSW-ENE, 1.5'x1.0'. Contains a bright, sharply defined 40" core and much fainter extensions. ************************************************************ NGC 3707 = NPM1G -11.0301 = PGC 35446 11 30 11.5 -11 32 37 V = 15.4; Size 0.5x0.4; SB = 13.5 17.5": extremely faint and small, round. Picked up 2.6' E of N3704. Incorrectly listed as nonexistent in the RNGC. N3704 and N3707 are attributed to both Common and Tempel in the NGC. Common's description in Copernicus, Vol 1 reads "2, F, R, on the parallel, star symmetrically placed between." Howe could only find 1 object on 4 nights. 13' due S of Common's single position (obtained from the setting circles) is a very faint pair of galaxies observed in my 17.5". The first of these galaxies is N3704 = M-02-29-037 at 11 30 04.6 -11 32 48 (2000) which has a mag 15 star 42" E. N3704 also has an extremely faint and compact companion 1.7' E with the mag 15 star between the galaxies as in Common's description, so it is a reasonable match for N3707 at 11 30 11.6 -11 32 37. For some reason, the RNGC ignores the second fainter galaxy of the pair and lists N3707 as nonexistent. Unfortunately, the NGC summary descriptions (from Tempel?) have some errors. The listing for N3704 mentions a mag 9-10 2' SSE of N3704, although the bright star is actually 2.6' WNW. Additionally, the description for N3707 mentions a "*15 (neb?) 2s following", which actually describes the mag 15 star 2.8 tsec following N3704. Nevertheless, Common's description is sufficient to identify this pair of galaxies. See RNGC Corrections #4. ************************************************************ NGC 3710 = UGC 06504 = MCG +04-27-052 = CGCG 126-078 = NPM1G +23.0261 = PGC 35502 11 31 07.0 +22 46 05 V = 13.1; Size 1.0x0.8; SB = 12.8; PA = 105d 17.5": faint, small, round, well-defined 30" halo is weakly concentrated but no noticeable core. Located 4.5' SW of mag 7.8 SAO 81865. A mag 15 star lies 1.3' SE and a pair of similar stars 2' NW. ************************************************************ NGC 3711 = MCG -02-29-035 = PGC 35392 11 29 25.5 -11 04 46 V = 14.5; Size 1.1x0.7; SB = 13.5 17.5": extremely faint, very small, round. A mag 11 star is 2.4' S of center. ************************************************************ NGC 3713 = UGC 06511 = MCG +05-27-084 = CGCG 156-094 = PGC 35546 11 31 42.0 +28 09 13 V = 13.2; Size 1.2x0.8; SB = 13.1; PA = 125d 18" (5/30/03): moderately bright, fairly small, elongated 3:2 NW-SE, 1.0'x0.7', small bright core. Collinear with a mag 11.5 star 5' WNW and a mag 13 star 8.5' WNW. 17.5" (4/9/99): fairly faint, small, slightly elongated NW-SE, 0.8'x0.6', bright core increases to a quasi-stellar nucleus, halo is ill-defined. Brightest of 4 in region with N3714 13' NNE, U06522 11' SE and CGCG 156-92 5.5' NW. ************************************************************ NGC 3714 = UGC 06516 = MCG +05-27-085 = CGCG 156-095 = PGC 35556 11 31 53.6 +28 21 31 V = 14.1; Size 0.5x0.4; Surf Br = 12.2; PA = 68d 18" (4/9/05): fairly faint, small, round, 25" diameter, fairly high surface brightness (like the core of a larger galaxy), moderate concentration though no nucleus. 18" (5/30/03): fairly faint, small, round, 0.4' diameter, weak concentration. Appears similar to the core of a larger galaxy. N3713 lies 13' SSW. 17.5" (4/9/99): very faint, very compact galaxy ~20" in diameter, brightens somewhat to center. Picked up at 100x along with brighter N3713 located 13' SSW. ************************************************************ NGC 3715 = MCG -02-29-041 = PGC 35540 11 31 32.3 -14 13 53 V = 11.1; Size 1.5x1.0; SB = 11.4; PA = 145d 17.5": fairly faint, fairly small, round, 40" diameter, even concentration, bright core, smoothly increases to core. A mag 10.5 star is 5.0' NNW of center. ************************************************************ NGC 3716 = UGC 06513 = MCG +01-30-001 = CGCG 040-001 = PGC 35545 11 31 41.2 +03 29 16 V = 13.5; Size 0.7x0.6; SB = 12.6; PA = 150d 17.5": fairly faint, fairly small, round, 40" diameter, weak even concentration. Located just west of the midpoint of a line connecting two mag 10 stars oriented N-S and separated by 8'. ************************************************************ NGC 3717 = ESO 439-015 = MCG -05-27-015 = UGCA 238 = PGC 35539 11 31 32.0 -30 18 28 V = 11.2; Size 6.0x1.1; SB = 13.1; PA = 33d 18" (3/19/04): moderately bright, moderately large, very elongated SSW-NNE, 2.5'x0.5', small brighter core, fades at the ends of the thin extensions. A mag 13 star is attached near the NNE end and this galaxy appears like a dagger attached to the brighter star. Located 7' ESE of mag 9 SAO 179951. Photographs reveal a strong dust lane but this was not noticed visually. 8": faint, small, very elongated ~N-S, thin, moderately large. Located 10' SE of mag 8.5 SAO 179951 and 1? SSW of N Crateris (V = 5.8). Forms a pair with IC 2913 7.3' SE (not seen). ************************************************************ NGC 3718 = UGC 06524 = MCG +09-19-114 = CGCG 268-048 = Arp 214 = PGC 35616 11 32 35.0 +53 04 05 V = 10.8; Size 8.1x4.0; SB = 14.4; PA = 15d 13.1": fairly bright, fairly large, broad concentration, almost round. Double star h2574 = mag 11/11 at 35" separation is 2.2' SSW of center. N3729 lies 12' ENE. The galaxy chain HCG 56 = U06527 = VV 150 lies 7' S. ************************************************************ NGC 3719 = UGC 06521 = MCG +00-30-005 = CGCG 12-008 = PGC 35581 11 32 13.4 +00 49 09 V = 13.0; Size 1.8x1.3; SB = 13.8; PA = 15d 17.5": moderately large, fairly diffuse, almost round, broad weak concentration. Forms a close pair with N3720 2.2' ESE. ************************************************************ NGC 3720 = UGC 06523 = MCG +00-30-006 = CGCG 12-010 = PGC 35594 11 32 21.6 +00 48 15 V = 13.0; Size 1.0x0.9; SB = 12.6; PA = 85d 17.5": moderately bright, fairly small, round, sharp concentration. Appears smaller but slightly brighter than N3719 2.2' WNW. ************************************************************ NGC 3722 = MCG -01-30-005 = NPM1G -09.0437 = PGC 35746 11 34 23.3 -09 40 48 V = 15.0; Size 0.8x0.8; SB = 14.4 17.5": extremely faint, very small, round, 15" diameter. First of close trio with M-01-30-007 = N3724 (uncertain ID) 1.8' NE and MCG -01-30-008 4.0' NE. Also nearby is MCG -01-30-003 (possibly N3730) 6.4' NNW and a couple of anonymous galaxies 9' and 10' NNE. Located 10' NNE of N3732. The galaxies in this group have uncertain NGC designations due to poor positions by Leavenworth. ************************************************************ NGC 3723 = MCG -02-30-002 = NPM1G -09.0433 = PGC 35604 11 32 30.6 -09 58 11 V = 13.3; Size 1.1x0.9; SB = 13.1 18" (3/19/04): fairly faint, small round, 25" diameter, weak concentration to a very small brighter nucleus. In a group of mostly faint galaxies with several uncertain NGC designations from Leavenworth (N3721, N3722, N3724) ~35' NE and N3732 which is 26' ENE. ************************************************************ NGC 3724 = MCG -01-30-007 = PGC 35757 11 34 28.7 -09 39 37 V = 14.2; Size 1.6x0.7; SB = 13.8; PA = 55d 17.5": extremely faint, small, elongated 2:1 SW-NE. Brightest in close trio with M-01-30-005 = N3722: 1.8' SE and M-01-30-008 2.3' NE, although still required averted vision. The NGC identifications in the group (from Leavenworth) are uncertain due to poor positions and several nearby faint galaxies. Discovered by Leavenworth (II) and described as the 2nd of two with N3722. Corwin notes the identification N3724 = M-01-30-007 is quite uncertain due to very imprecise coordinates from Leavenworth. M-01-30-007 is NE of M-01-30-005 but the discovery position is SE. It is also possible that N3724 = M-01-30-008 close NE (3rd of 3 on line) although this galaxy was the faintest visually of the trio. RNGC places N3724 south of N3722, although the rectangular coordinates correctly place it north. The New Description appears to refer to M-01-30-007. This galaxy is not identified as N3724 in MCG. ************************************************************ NGC 3725 = UGC 06542 = MCG +10-17-015 = CGCG 291-078 = CGCG 292-005 = Mrk 179 = PGC 35698 11 33 40.6 +61 53 16 V = 13.0; Size 1.2x0.9; SB = 13.0; PA = 145d 17.5": fairly faint, fairly small, elongated 4:3 NNW-SSE, 1.0'x0.7', weak concentration to a small, slightly brighter coire. A mag 14 star is 1' SE of center. UGC 6528 lies 7.6' SW. A nice edge-on N3762 lies 27' ESE. ************************************************************ NGC 3726 = UGC 06537 = MCG +08-21-051 = CGCG 242-045 = PGC 35676 11 33 21.1 +47 01 45 V = 10.4; Size 6.2x4.3; SB = 13.8; PA = 10d 17.5": bright, large, oval 2:1 N-S, 5.0'x2.5', patchy mottled appearance, very small or stellar nucleus but no core. A mag 12 star is at the N tip 2.4' from the center. ************************************************************ NGC 3728 = UGC 06536 = MCG +04-27-061 = CGCG 126-087 = NPM1G +24.0248 = PGC 35669 11 33 15.8 +24 26 49 V = 13.0; Size 2.0x1.5; SB = 14.1; PA = 25d 17.5": fairly faint, fairly small. Contains a bright core and stellar nucleus surrounded by faint extensions SSW-NNE, 1.0'x0.6'. A nice mag 9/10 pair at 12" lies 11' SW ************************************************************ NGC 3729 = UGC 06547 = MCG +09-19-117 = CGCG 268-051 = PGC 35711 11 33 49.3 +53 07 33 V = 11.4; Size 2.8x1.9; SB = 13.1; PA = 15d 13.1": fairly bright, fairly small, elongated ~N-S. A mag 11 star is on the SSW edge 57" from the center. N3718 lies 12' WSW. ************************************************************ NGC 3730 = MCG -01-30-003 = NPM1G -09.0436 = PGC 35734 11 34 16.8 -09 34 34 V = 13.1; Size 1.5x1.3; SB = 13.7; PA = 18d 17.5": faint, fairly small, slightly elongated ~N-S, 0.8'x0.6', weak concentration to center but no well-defined core. Several fainter galaxies in field including trio of N3722, N3724 and M-01-30-008 ~6' SE and a very faint pair of anonymous galaxies 4.5' NE and 7.0' NE. The NGC identification is very uncertain as Leavenworth's position is a very poor match. Discovered by Leavenworth (II) and possibly independently observed by Common (Dreyer mentions N3730 is one of Common's "a cluster of 3 similar ones 15' N [of N3732]). Leavenworth's position is 0.6 tmin E and 6' N of N3724 (in a group with N3722, all with uncertain identifications), although N3724 is described as a pair only with N3722. Corwin notes this identification is uncertain and lists as a more plausible candidate in ESGC the double galaxy M-01-30-003/004 at 11 34 16.8 -09 34 34 which is 0.2 tmin W of N3724 and 5' N. The DSFG data appears to apply to this galaxy although the given position is closer to M-1-30-008. Another possibility is that N3730 refers to one of the extremely faint galaxies in a trio which is NE of M-01-03-003. Of this trio, the galaxy at 11 34 43.3 - 09 31 59 is the brightest and is located 15 tsec E and 7.6' N of M-01-30-007 which is a good match with his delta Dec from N3724. RNGC appears to identify N3730 as M-01-30-008. This galaxy is 9 tsec E and 1' N of N3724. ************************************************************ NGC 3731 = UGC 06553 = MCG +02-30-001 = CGCG 068-003 = NPM1G +12.0281 = PGC 35731 11 34 11.7 +12 30 44 V = 12.9; Size 1.0x0.9; SB = 12.6; PA = 50d 17.5": fairly faint, small, round, 30" diameter, weak concentration. A wide mag 10/14 pair lies 7' NE. ************************************************************ NGC 3732 = MCG -02-30-005 = PGC 35734 11 34 13.9 -09 50 44 V = 12.5; Size 1.2x1.2; SB = 12.8; PA = 85d 17.5" (4/5/97): moderately bright, fairly small, elongated 4:3 ~E-W, broad concentration with a bright core. A mag 12 star lies 1.0' SW. A group of at least six very faint galaxies lies between 10'-20' N and N3723 lies 26' WSW. 17.5" (5/2/92): fairly faint, fairly small, slightly elongated but irregular outline, fairly bright elongated core. A faint stellar nucleus is visible at moments. A mag 13 star lies 1.0' SW. Located 35' W of Theta Crateris (V = 4.7). ************************************************************ NGC 3733 = UGC 06554 = MCG +09-19-123 = CGCG 268-055 = VV 459 = PGC 35797 11 35 01.7 +54 51 02 V = 12.4; Size 4.8x2.2; SB = 14.8; PA = 170d 17.5": very faint, moderately large, elongated 2:1 ~N-S, very diffuse. Located 4' N of mag 5.6 SAO 28064 which detracts from viewing! Located within a large galaxy group including N3738 21' SSE and N3737 8' NE. Possible member of Abell 1318. ************************************************************ NGC 3735 = UGC 06567 = MCG +12-11-036 = CGCG 334-042 = PGC 35869 11 35 57.3 +70 32 09 V = 11.8; Size 4.2x0.8; SB = 13.0; PA = 131d 17.5": fairly faint, edge-on 5:1 NW-SE, 3.0'x0.6', small bright core, stellar nucleus at moments. A mag 14 star lies 1.1' NE of center. ************************************************************ NGC 3736 = UGC 06560 = MCG +12-11-035 = CGCG 334-041 = NPM1G +73.0073 = PGC 35835 11 35 41.7 +73 27 07 V = 14.5; Size 1.2x0.7; Surf Br = 14.1; PA = 155d 18" (3/30/05): faint, fairly small, elongated 5:3 ~NW-SE, 0.8'x0.5'. A faint star is superimposed on the SE side. Located 4.7' NE of mag 8.3 HD 100532. ************************************************************ NGC 3737 = UGC 06563 = MCG +09-19-128 = CGCG 268-058 = Ho 266a = PGC 35840 11 35 36.4 +54 56 55 V = 12.9; Size 1.0x1.0; SB = 12.8 17.5": fairly faint, very small, round. Forms a pair with CGCG 268-057 = N3737A 1' SW. Superimposed on rich galaxy cluster Abell 1318. ************************************************************ NGC 3737A = MCG +09-19-126 = CGCG 268-057 = Ho 266b = PGC 35811 11 35 31.5 +54 55 52 V = 14.4; Size 0.8x0.3; SB = 12.7 17.5": extremely faint, very small, slightly elongated. Located 2' SSW of N3737. ************************************************************ NGC 3738 = UGC 06565 = MCG +09-19-130 = CGCG 268-060 = Arp 234 = PGC 35856 11 35 48.5 +54 31 28 V = 11.7; Size 2.5x1.9; SB = 13.3; PA = 155d 17.5": fairly bright, moderately large, elongated 3:2 NNW-SSE although has an irregular appearance. Sharper edge on the W side and more curved on the E side. Two mag 10/11 stars are 2.4' NE and 4.0' ENE of center. N3756 lies 15' SE. 13": fairly bright, almost even surface brightness. ************************************************************ NGC 3739 = UGC 06564 = MCG +04-27-071 = CGCG 126-105 = PGC 35841 11 35 37.6 +25 05 19 V = 14.5; Size 1.1x0.3; SB = 13.2; PA = 17d 17.5": very faint, very elongated 3:1 SSW-NNE, 0.6'x0.2', very low even surface brightness. Located 12' W of mag 7.0 HD 100843 (very close double?). ************************************************************ NGC 3740 = UGC 06573 = MCG +10-17-023 = CGCG 292-008 = PGC 35883 11 36 12.3 +59 58 35 V = 14.0; Size 0.9x0.4; Surf Br = 12.7; PA = 110d 18" (3/30/05): faint, small, elongated 5:2 WNW-ESE, 0.5'x0.2'. Situated on a line between a mag 14 star 2' SE and a mag 13 star 3' NW. ************************************************************ NGC 3745 = MCG +04-28-004 = HCG 57g = Arp 320 = Copeland's Septet = PGC 36001 11 37 44.4 +22 01 16 V = 15.2; Size 0.4x0.2; SB = 12.4; PA = 100d 17.5": this member of Copeland's Septet appears extremely faint and small, round. Located between brighter N3748 1.1' E and N3746 just 0.7' S. 17.5": second of 7 member of Copeland's Septet. Extremely faint and small, round. Second in a very tight trio with N3746 43" SSW and N3748 1.1' ENE. Located 3.2' NW of N3753. Discovered by Copeland. Due to a mixup in the reference stars, the positions for Copeland's Septet were offset 1.5 tmin W and 16' S. The error was caught by Kobold in AN 3241 and acknowledged by Dreyer in AN 3246 and corrected by Dreyer in the IC 1 notes. The members of the Septet are incorrectly listed as nonexistent in RNGC due to the NGC positional error. See RNGC Corrections #2 and Deep Sky 1983. ************************************************************ NGC 3746 = UGC 06597 = MCG +04-28-005 = CGCG 127-006 = VV 282 = Arp 320 = Copeland's Septet = HCG 57b = PGC 35997 11 37 43.6 +22 00 35 V = 14.2; Size 1.1x0.5; SB = 13.5; PA = 127d 17.5": this member of Copeland's Septet appears very faint, very small, round. Brightest of close trio with similar N3748 1.6' NE and N3745 just 0.7' N. 17.5": first of 7 in Copeland's Septet and second brightest in the group. Very faint, very small, round. Brightest of a close trio with N3745 43" NNE and N3748 1.6' NE. Discovered by Copeland. The members are of Copeland's Septet are listed as nonexistent in RNGC due to an error in the NGC positions. See RNGC Corrections #2 and Deep Sky 1983. ************************************************************ NGC 3747 = NPM1G +74.0077 = PGC 90149 11 32 31.0 +74 22 42 Size 0.3x0.1 17.5": extremely faint, very small, round. Only visible with averted vision for moments although repeatedly glimpsed. Listed as nonexistent in RNGC (NGC position very poor) and not in CGCG or MCG. Discovered by WH (III 969) during the northern sweep of 2 Apr 1801 with all 15 positions having large systematic errors. The position was corrected based on Greenwich plates (MN, 71, 509, 1911) and repeated by Dreyer in his 1912 revision of WH's catalogues. NGCPOS also places N3747 at the same position 11 32 30.9 +74 22 43 (2000). There is an extremely small and faint galaxy at this position on DSS which is not listed in any modern catalogue. Based on the fact that this galaxy is not listed in CGCG and all other galaxies discovered on the same sweep are brighter than mag 15p, this identification seems questionable to me. Listed as nonexistent in RNGC. ************************************************************ NGC 3748 = MCG +04-28-007 = CGCG 127-007 = VV 282 = Arp 320 = Copeland's Septet = HCG 57e = PGC 36007 11 37 49.1 +22 01 34 V = 14.8; Size 0.7x0.4; SB = 13.2 17.5": very faint, very small, round. Third of three in a tight trio within Copeland's Septet with extremely faint N3745 1.1' W and N3746 1.6' SW. 17.5": third of 7 in Copeland's Septet. Extremely faint and small, round. This galaxy is the third in a close trio with N3745 1.1' WSW and N3746 1.6' SW. Located 2.9' NNW of N3753. Member of Copeland's Septet. Incorrectly listed as nonexistent in the RNGC due to bad NGC position for group. See RNGC Corrections #2 and Deep Sky 1983. ************************************************************ NGC 3750 = MCG +04-28-008 = CGCG 127-009 = NPM1G +22.0340 = Arp 320 = VV 282 = Copeland's Septet = HCG 57c = PGC 36011 11 37 51.7 +21 58 27 V = 13.9; Size 0.8x0.7; SB = 13.1; PA = 160d 17.5": faint, very small, round, very small bright core. First of three in Copeland's Septet in a tight trio with N3753 just 40" NE and N3754 1.0' NE. 17.5": fourth of 7 in Copeland's Septet. Very faint, very small, round. Located just 39" SW of brighter N3753. Member of Copeland's Septet. Incorrectly listed as nonexistent in RNGC. See RNGC Corrections #2 and Deep Sky 1983. ************************************************************ NGC 3751 = UGC 06601 = MCG +04-28-009 = Copeland's Septet = HCG 57f = PGC 36017 11 37 53.9 +21 56 11 V = 13.9; Size 0.8x0.5; SB = 12.7; PA = 5d 17.5": extremely faint and small, round, 20" diameter. Requires averted vision although easier to view than N3754. Furthest S member of Copeland's Septet. Located 2.0' WSW of a mag 13 star and 2.7' S of brightest member N3753. Member of Copeland's Septet. Incorrectly listed as nonexistent in RNGC. See RNGC Corrections #2 and Deep Sky 1983. N3751 = U06601 although UGC has incorrectly copied the coordinates and magnitude for Z127-011 located 8' S. See WSQJ Letters, 10/92, Corwin. ************************************************************ NGC 3752 = UGC 06515 = MCG +13-08-064 = CGCG 351-063 = PGC 35608 11 32 32.3 +74 37 39 V = 12.9; Size 1.7x0.7; SB = 12.9; PA = 155d 17.5": fairly faint, moderately large. At first this galaxy appeared roundish (probably viewing the core only), but then fainter extensions were seen NW-SE, increasing the dimensions to 1.2'x0.6'. Forms a triangle with two mag 11/13 stars 2.4' ENE and 1.4' NNE, respectively, and several other stars trail off towards the SW. Discovered by WH (II 905) during the northern sweep of 15 galaxies on 2 Apr 1801. The corrected position from Greenwich plates in MN, 71, 509, 1911 matches UGC 6515 = M+13-08-064 = CGCG 351-063 at 11 32 32.3 +74 37 39 (2000) although the NGC position (from h917) is far off at 11 37.6 +75 16 (2000). JH observed an extremely faint galaxy at 11 36 17 +75 17 14 (2000) and assumed this was II 905. His position is given in Monthly Notices, 71, 509, 1911 (from Greenwich plates). Originally, Corwin identified N3752 with this faint galaxy but agrees that II 905 = N3752 = UGC 6515 and II 905 ? h917. See NGCBUGS for complete discussion. ************************************************************ NGC 3753 = UGC 06602a = MCG +04-28-010 = CGCG 127-012sw = Arp 320 = VV 282 = Copeland's Septet = HCG 57a = PGC 36016 11 37 53.8 +21 58 53 V = 13.6; Size 1.7x0.5; SB = 13.2; PA = 120d 17.5": the brightest member of Copeland's Septet appears very faint, very small, slightly elongated NW-SE. Closely bracketed by N3750 40" SW and virtually in contact with N3754 just 20" NE of center. A mag 12 star lies 1.3' N. 17.5": this galaxy is the brightest member of Copeland's Septet. Very faint, fairly small, elongated WNW-ESE, bright core. This is the central galaxy in a very tight trio with N3750 39" SW and N3754 22" NE of center. Other members include N3745 3.2' NW, N3746 2.9' NW and N3748 2.9' NNW. Brightest in Copeland's Septet. Incorrectly listed as nonexistent in the RNGC, along with all other members of the group due to a bad position in NGC. See RNGC Corrections #2 and Deep Sky 1983. ************************************************************ NGC 3754 = MCG +04-28-011 = CGCG 127-012ne = Arp 320 = VV 282 = Copeland's Septet = HCG 57d = PGC 36018 11 37 55.0 +21 59 07 V = 14.3; Size 0.4x0.3; SB = 12.0 17.5": one of the three most difficult members of Copeland's Septet appears extremely faint and small, round. Difficult to resolve from brighter N3753 just 40" SW of center. A mag 12 star is 1.0' N. Member of Copeland's Septet. Incorrectly listed as nonexistent in the RNGC. See RNGC Corrections #2 and Deep Sky 1983. ************************************************************ NGC 3755 = UGC 06577 = MCG +06-26-008 = CGCG 186-012 = PGC 35913 11 36 33.4 +36 24 37 V = 12.8; Size 3.2x1.4; SB = 14.3; PA = 133d 17.5": fairly faint, fairly large, elongated 2:1 NW-SE, 2'x1'. Broad, weak concentration to a slightly brighter oval core. A couple of very faint stars are nearby. ************************************************************ NGC 3756 = UGC 06579 = MCG +09-19-134 = CGCG 268-063 = PGC 35931 11 36 47.9 +54 17 39 V = 11.5; Size 4.2x2.1; SB = 13.7; PA = 177d 17.5": moderately bright, large, oval 2:1 N-S, even surface brightness. A mag 10 star is 4.0' NNW of center. 13": fairly large, diffuse, elongated N-S. 8": very faint, low surface brightness. Located 15' SE of N3738. ************************************************************ NGC 3757 = UGC 06584 = MCG +10-17-026 = CGCG 292-010 = PGC 35955 11 37 02.9 +58 24 56 V = 12.6; Size 1.1x1.1; SB = 12.7 17.5": compact, high surface brightness glow, round, 25" diameter, very small bright core. A mag 13 star lies 1' E of center. Several galaxies are within 30' in a group (LGG 246). ************************************************************ NGC 3758 = MCG +04-27-073 = CGCG 126-110 = Mrk 739 = PGC 35905 11 36 29.2 +21 35 46 V = 14.2; Size 0.5x0.5; SB = 12.6 17.5": fairly faint, small, slightly elongated, 0.5' diameter. Following by 2.5' is mag 9.7 SAO 81899 which is the first of three on a line to the NE. Also in the field is a 43" pair of mag 9.5 stars ~8' SSE. Discovered by Copeland and situated 30' SW of Copeland's Septet. ************************************************************ NGC 3759 = UGC 06581 = MCG +09-19-136 = CGCG 268-064 = PGC 35945 11 36 54.1 +54 49 23 V = 13.3; Size 1.1x1.1; SB = 13.3 17.5": faint, very small, round, weak concentration. Located 2.1' N of a mag 11 star and 16' E of mag 5.6 SAO 28064. Forms a pair with IC 2943 2.2' NW. N3759A = U06582 lies 20' N. ************************************************************ NGC 3759A = UGC 06582 = MCG +09-19-135 = CGCG 268-065 = PGC 35948 11 36 57.9 +55 09 43 V = 13.6; Size 1.2x1.1; SB = 13.7 17.5": faint, moderately large, very diffuse, slightly elongated SW-NE. A mag 15 star is off the NE edge. Located 4' S of a mag 10 star. ************************************************************ NGC 3760 = N3301 = U05767 = MCG +04-25-035 = CGCG 124-045 = PGC 31497 10 36 56.0 +21 52 55 See observing notes for N3301. There is a one hour error in RA in the NGC. ************************************************************ NGC 3761 = CGCG 127-001 = NPM1G +23.0266 = PGC 35933 11 36 44.1 +22 59 31 V = 14.0; Size 0.5x0.5 17.5": very faint, very small, round, 20" diameter. Contains a faint stellar nucleus at moments. Located one degree NNW of Copeland's Septet. ************************************************************ NGC 3762 = UGC 06591 = MCG +10-17-027 = CGCG 292-011 = PGC 35979 11 37 23.9 +61 45 33 V = 12.6; Size 1.9x0.5; SB = 12.4; PA = 167d 17.5": this attractive spindle appeared fairly faint/moderately bright, fairly small, elongated 7:2 NNW-SSE, 1.2'x0.35', sharp bright core, stellar nucleus. N3725 lies 27' WNW. ************************************************************ NGC 3763 = MCG -02-30-009 = IC 714 = PGC 35907 11 36 30.3 -09 50 48 V = 12.7; Size 1.1x1.1; SB = 12.8 17.5": faint, fairly small, slightly elongated, almost even surface brightness. Overpowered by Theta Crateris (V = 4.7) just 3.7' NE. ************************************************************ NGC 3764 = MCG +03-30-020 = CGCG 097-025 = II Zw 52 = NPM1G +18.0302 = PGC 35930 11 36 54.6 +17 53 18 V = 14.0; Size 1.1x0.9; SB = 13.8 17.5": faint, small, round, 0.7' diameter, very small brighter core with direct vision. This is a close interacting system (unresolved). Forms a pair with N3768 5.5' SE. Both William and John Herschel missed this galaxy although they observed nearby N3768. ************************************************************ NGC 3765 = MCG +04-28-001 = CGCG 127-003 = PGC 35956 11 37 04.2 +24 05 46 V = 14.0; Size 0.8x0.6; SB = 13.1 17.5": faint, small, slightly elongated E-W, 40"x30", even surface brightness. About 5' following is a perfect equilateral triangle of mag 11 stars with sides 4' ************************************************************ NGC 3766 = Cr 248 = E129-SC027 11 36 14 -61 36.6 V = 5.3; Size 15 13.1" (2/18/04 - Costa Rica): this is a superb naked-eye open cluster in Centaurus with several hundred stars resolved in a 15' field including a beautiful string of stars running SW-NE on the south side of the cluster. Contains a very dense mass of stars in the central 5' seemingly arranged in a spiral configuration. A mag 7.3 star is at the NW end and a mag 7.2 star is off the SE side. This impressive cluster was a surprising showpiece. Located 50' NW of a mag 5.1 star and 1.4? due N of mag 3.1 Lambda Centauri. ************************************************************ NGC 3767 = UGC 06590 = MCG +03-30-023 = CGCG 097-031 = NPM1G +17.0361 = PGC 35969 11 37 15.5 +16 52 37 V = 13.4; Size 1.0x0.9; SB = 13.1 17.5": fairly faint, small, slightly elongated E-W, 25"x20" diameter, fairly high surface brightness (core only viewed?). A mag 14 star lies 2.3' SW of center. ************************************************************ NGC 3768 = UGC 06589 = MCG +03-30-024 = CGCG 097-030 = PGC 35968 11 37 14.4 +17 50 23 V = 12.4; Size 1.8x1.2; SB = 13.1; PA = 155d 17.5": fairly faint, fairly small, slightly elongated, 1.0' diameter, moderately concentrated. Forms a pair with N3768 5.5' NW. Member of a large group (LGG 246) ************************************************************ NGC 3769 = UGC 06595 = MCG +08-21-076 = CGCG 242-065 = Arp 280a = PGC 35999 11 37 44.2 +47 53 34 V = 11.8; Size 3.1x1.0; SB = 12.8; PA = 152d 17.5": fairly bright, moderately large, very elongated 3:1 NNW-SSE, 2.5x0.8', weak concentration. A mag 13.5 star is 2.2' NE of center. A very close companion N3769A = CGCG 242-066 is 56" SE of center. ************************************************************ NGC 3769A = MCG +08-21-077 = CGCG 242-066 = Arp 280b = PGC 36008 11 37 50.3 +47 52 53 V = 14.2; Size 1.1x0.4; SB = 13.3; PA = 105d 17.5": very faint, very elongated 3:1 WNW-ESE, low surface brightness. Located just off the SE edge of N3769 with a separation of 56" between centers. ************************************************************ NGC 3770 = UGC 06600 = MCG +10-17-028 = CGCG 292-012 = LGG 251-001 = PGC 36025 11 37 58.7 +59 37 01 V = 12.9; Size 1.0x0.7; SB = 12.4; PA = 107d 18" (3/5/05): fairly faint, small, round, fairly high surface brightness, only 20" diameter. I probably viewed only the core as the catalalogued dimensions are much larger) ************************************************************ NGC 3771 = MCG -01-30-018 = PGC 36107 11 39 06.0 -09 20 53 V = 12.6; Size 1.3x1.3; SB = 13.2 17.5": faint, fairly small, round, increases to a bright core, appears to have a very faint larger halo. Appears similar to N3791 8' E. Identification uncertain as NGC position from Leavenworth is 1.7 tmin farther W. Discovered by Leavenworth (II). His position is 1.7 tmin W of M-01-30-018 although the declination matches. The RNGC RA is incorrectly given as 0.7 tmin farther west than the position given here. Leavenworth mentions a *10 is 15 tsec preceding. There is no bright star west but instead mag 13.5 GSC star 16 tsec W and Leavenworth's magnitudes are often listed much to bright. Still, Corwin gives this identifcation as somewhat uncertain. See NGCBUGS. ************************************************************ NGC 3772 = UGC 06598 = MCG +04-28-006 = CGCG 127-008 = PGC 36005 11 37 48.5 +22 41 28 V = 13.5; Size 1.1x0.6; SB = 13.0; PA = 16d 17.5": fairly faint, fairly small, elongated ~2:1 SSW-NNE, 0.9'x0.5', slightly brighter core. Located 40' N of Copeland's Septet! ************************************************************ NGC 3773 = UGC 06605 = MCG +02-30-005 = CGCG 127-008 = Mrk 743 = PGC 36043 11 38 13.0 +12 06 44 V = 12.0; Size 1.2x1.0; SB = 12.1; PA = 165d 13.1": fairly faint, very small, round, stellar nucleus, small faint halo. ************************************************************ NGC 3775 = MCG -02-30-012 = PGC 36055 11 38 26.8 -10 38 19 V = 13.9; Size 1.1x0.5; SB = 13.1; PA = 27d 17.5": very faint, fairly small, elongated 3:1 SSW-NNE, 1.0'x0.3', low even surface brightness. A mag 12 star lies 3.0' NNW. Forms a pair with N3779 6.8' NE. ************************************************************ NGC 3777 = MCG -02-30-008 = PGC 35879 11 36 06.8 -12 34 08 V = 13.4; Size 1.1x0.6; SB = 12.8; PA = 35d 18" (3/19/04): faint, fairly small, slightly elongated SW-NE, 0.7'x0.5', very weak concentration. Located 13' SE of mag 7.2 SAO 156771. ************************************************************ NGC 3779 = MCG -02-30-013 = IC 717 = PGC 36084 11 38 51.3 -10 35 01 V = 13.7; Size 2.1x0.8; SB = 14.1; PA = 85d 17.5": extremely faint, fairly small, round, 0.5'. Was not able to locate initially at 220x but once picked up with averted a dim glow was visible <50% of the time. Located 6.8' NE of brighter N3775. ************************************************************ NGC 3780 = UGC 06615 = MCG +09-19-150 = CGCG 292-014 = PGC 36138 11 39 22.3 +56 16 15 V = 11.5; Size 3.1x2.5; SB = 13.5; PA = 90d 17.5": moderately bright, moderately large, elongated 3:2 SW-NE, weak concentration, uneven surface brightness. A mag 13 star is off the ENE side 2.1' from center. Forms a pair with N3804 13' ESE. ************************************************************ NGC 3781 = MCG +05-28-004 = CGCG 157-005 = PGC 36104 11 39 03.8 +26 21 43 V = 13.7; Size 0.5x0.3 17.5": faint, very small, round, very small brighter core. A mag 14.5 star is 40" E. First of three with N3784 and N3785 7' SE. ************************************************************ NGC 3782 = UGC 06618 = MCG +08-21-087 = CGCG 242-071 = PGC 36136 11 39 20.7 +46 30 48 V = 12.4; Size 1.7x1.1; SB = 12.9; PA = 0d 17.5": fairly faint, fairly small, elongated 2:1 SSW-NNE, 1.0'x0.5', almost even surface brightness. A mag 12 star is at the SSW tip 0.6' from center and a mag 15 star is off the NNE tip 1.3' from center. ************************************************************ NGC 3784 = MCG +05-28-006 = CGCG 157-006 = PGC 36147 11 39 29.8 +26 18 33 V = 14.3; Size 0.9x0.3; SB = 12.8; PA = 135d 17.5": very faint, fairly small, very elongated 3:1 NW-SE, weak concentration, low surface brightness. Located just 0.9' NE of a mag 10.5 star. Forms a close pair with N3785 0.8' SE with N3781 7' NW. ************************************************************ NGC 3785 = UGC 06620 = MCG +05-28-007 = CGCG 157-008 = PGC 36148 11 39 32.9 +26 18 08 V = 14.2; Size 1.0x0.4; SB = 13.0; PA = 25d 17.5": faint, fairly small, elongated 2:1 SW-NE, small bright core, very faint extensions. Located 1.5' E of a mag 10.5 star. This galaxy is the slightly brighter of a close pair with N3784 just 0.8' NW. N3781 lies 7' NW. ************************************************************ NGC 3786 = UGC 06621 = MCG +05-28-008 = CGCG 157-009 = Arp 294a = VV 228b = Mrk 744 = Ho 272b = PGC 36158 11 39 42.4 +31 54 32 V = 12.3; Size 2.2x1.3; SB = 13.3; PA = 77d 18" (4/10/04): moderately bright, fairly small, elongated 2:1 WSW-ENE, brighter core. Observed SN 2004bd, discovered less than a week earlier on 4/4/04 and situated just 4.7" W and 1.2" S of center. When the seeing steadied, the supernova was clearly resolved as a mag 14.5 "star" close WSW of center (along the major axis) and very close to the brighter core. Forms a pair with N3788 1.4' NE of center. A mag 10.8 star lies 2.0' SE. 17.5" (2/24/90): moderately bright, moderately large, elongated 5:2 WSW-ENE, bright core. Forms a pleasing close pair with N3788 (separation of 1.4' NE). The galaxies are elongated at nearly right angles and almost attached at the ENE end of N3786 . A mag 10.5 star is 2' SE. ************************************************************ NGC 3787 = MCG +04-28-015 = CGCG 127-017 = PGC 36154 11 39 37.9 +20 27 17 V = 13.9; Size 0.5x0.3; SB = 11.7 17.5": faint, very small, elongated 4:3, SW-NE, 0.4'x0.3'. Moderate concentration to a quasi-stellar nucleus. Forms the NE vertex of a small triangle with a mag 13 star 1' W and a mag 12 star 1.7' S. N3805 lies 16' SE. Located at the NW edge of Abell 1367. *****************************