Brian A. Skiff
Lowell Observatory
1400 West Mars Hill Road
Flagstaff AZ 86001-4499
USA
e-mail: bas@lowell.edu
notes: ESO 452-SC11, IC 1257 added, AM-2 deleted (is old oc), Terzan 10 added
Name RA (2000) Dec Diam(') Vt V(tip) B-V(tip) V(HB)
mu22 mu25
NGC 104 = 47 Tuc 0 24 05 -72 04.9 24 50 4.0 11.7 1.7 14.1
NGC 288 0 52 48 -26 35.4 5.5 13 8.1: 12.6 1.8 15.3
NGC 362 1 03 14 -70 50.9 6.1 14 6.8 12.7 1.7 15.4
Fornax-1 2 37 02 -34 11.0 0.9 15.6 18.3 1.3 21.3
Fornax-2 2 38 44 -34 48.6 13.5 19.0 1.3 21.3
NGC 1049 = Fornax-3 2 39 48 -34 15.4 12.6 18.4 1.2 21.3
Fornax-4 2 40 07 -34 32.3 13.6 18.6 1.2 21.3
Fornax-5 2 42 21 -34 06.2 1.7 13.4 18.6 1.3 21.3
NGC 1261 3 12 15 -55 13.0 3.2 6.8 8.3 13.5 1.7 16.8
Palomar 1 3 33 23 +79 34.8 2.8 13.6: 16.3 1.2:
AM-1 = E 1 3 55 03 -49 36.9 0.5 15.8: 18.2 1.5 20.9
Eridanus 4 24 45 -21 11.2 14.7: 17.6 1.5 20.4
Palomar 2 4 46 06 +31 22.9 2.2 13.0: 18.8: 21.7
NGC 1851 5 14 06 -40 02.8 4.5 12 7.1 13.2 1.7 16.1
NGC 1904 = M79 5 24 11 -24 31.5 3.8 9.6 7.7 13.1 1.6 16.2
NGC 2298 6 48 59 -36 00.3 2.2 5: 9.3 13.4 1.3 16.2
NGC 2419 7 38 08 +38 52.9 1.6 4.6 10.3 17.3 1.4 20.2
Pyxis 9 07 57 -37 13.6 2: 15.2 2.8 18.7
NGC 2808 9 12 03 -64 51.8 6.5 14 6.2 13.8 1.9 16.1
E 3 9 20 59 -77 17.0 11.4: 17.0: 1.1: --
Palomar 3 10 05 31 +0 04.3 1.6 13.9: 18.0 1.2 20.5
NGC 3201 10 17 37 -46 24.7 7.8 20 6.9 11.7 1.7 14.8
Palomar 4 11 29 17 +28 58.4 1.3 14.2: 18.0 1.4 20.8
NGC 4147 12 10 06 +18 32.5 1.6 4.4 10.4 14.5 1.2 16.9
NGC 4372 12 25 45 -72 39.4 5: 7.2 12.2 2.0 15.6
Ruprecht 106 12 38 40 -51 09.0 2: 10.9: 14.8 1.6 17.8
NGC 4590 = M68 12 39 28 -26 44.6 4.3 11 7.3 12.6 1.3 15.6
NGC 4833 12 59 35 -70 52.5 8.4 12.4 1.7 15.5
NGC 5024 = M53 13 12 55 +18 10.2 5.1 13 7.7 13.8 1.6 16.9
NGC 5053 13 16 27 +17 41.9 10 9.0 13.8 1.5 16.9
NGC 5139=omega Cen 13 26 46 -47 28.6 29 55 3.9 11.5 1.7 14.5
NGC 5272 = M3 13 42 11 +28 22.7 7.4 18 6.3 12.7 1.7 15.7
NGC 5286 13 46 27 -51 22.4 5.1 11 7.4 13.5 1.8 16.5
AM-4 13 56 21 -27 09.7 15.9 20.5: 0.5 21.6
NGC 5466 14 05 27 +28 32.1 3.0 9.0 9.2 13.8 1.3 16.6
NGC 5634 14 29 37 -5 58.6 1.8 5.5 9.5 17.8
NGC 5694 14 39 37 -26 32.3 1.6 4.3 10.2 15.5: 1.3: 18.5:
IC 4499 15 00 19 -82 12.8 2.2 8.0 10.1 14.6 1.6 17.7
NGC 5824 15 03 59 -33 04.1 2.5 7.4 9.1 15.5 1.6 18.5
Palomar 5 15 16 05 -0 06.7 3.2 11.8: 15.5 1.1 17.4
NGC 5897 15 17 25 -21 00.6 4.5 11 8.4 13.3 1.8 16.3
NGC 5904 = M5 15 18 34 +2 05.0 11 23 5.7 12.2 1.6 15.1
NGC 5927 15 28 01 -50 40.4 4.6 6: 8.0 14.5 2.2 16.6
NGC 5946 15 35 29 -50 39.6 3: 8.4 17.2
NGC 5986 15 46 04 -37 47.2 9.6 7.6 13.2 1.7 16.5
Palomar 14 16 11 00 +14 57.8 14.7: 17.6 1.3 20.0
NGC 6093 = M80 16 17 03 -22 58.5 4.5 10 7.3 12.5 1.8 15.6
NGC 6121 = M4 16 23 36 -26 31.5 15 36 5.4 10.8 1.8 13.4
NGC 6101 16 25 49 -72 12.1 3.0 5: 9.2 13.5 1.8 16.6
NGC 6144 16 27 14 -26 01.5 3.7 17 9.0 13.4: 1.7: 16.5:
NGC 6139 16 27 40 -38 50.9 2.7 8.2 9.1 15.0 1.5: 17.9
Terzan 3 16 28 41 -35 20.6 12.0: 15.0 2.2 17.3
NGC 6171 = M107 16 32 32 -13 03.2 4.2 13 7.8 13.0 1.9 15.6
ESO 452-SC11 16 39 25 -28 23.9 15.3: 16.6
NGC 6205 = M13 16 41 41 +36 27.6 10 20 5.8 11.9 1.6 15.0
NGC 6229 16 46 59 +47 31.7 2.0 4.5 9.4 15.5 1.5 18.0
NGC 6218 = M12 16 47 15 -1 56.9 7.4 16 6.1 12.0 1.7 14.6
NGC 6235 16 53 25 -22 10.6 2.2 5: 8.9 14.0: 1.8 16.7
NGC 6254 = M10 16 57 09 -4 06.0 8.5 20 6.6 12.0 1.6 14.7
NGC 6256 16 59 33 -37 07.3 1.2 4.1 11.3: 15.3: 2.7: 18.2:
Palomar 15 16 59 51 -0 32.5 14.2 17.1 1.8 19.9
NGC 6266 = M62 17 01 13 -30 06.8 7.2 15 6.4 13.2: 2.0: 16.3:
NGC 6273 = M19 17 02 38 -26 16.1 7.0 17 6.8 14.0? 1.8: 17.0
NGC 6284 17 04 29 -24 45.9 3.1 8.9 16.6
NGC 6287 17 05 09 -22 42.5 2.4 9.3 14.5: 1.8: 17.1:
NGC 6293 17 10 10 -26 34.9 4.1 8.3 14.3 1.4 16.5:
NGC 6304 17 14 32 -29 27.7 4.3 8: 8.3 14.2: 2.1: 16.2
NGC 6316 17 16 37 -28 08.4 2.7 8.1 16.0: 17.8
NGC 6341 = M92 17 17 07 +43 08.2 7.0 14 6.5 12.1 1.3 15.1
NGC 6325 17 17 59 -23 46.0 1.6 4.1 10.2 14.7? 2.4: 17.3:
NGC 6333 = M9 17 19 12 -18 31.0 4.5 12 7.8 13.5 1.7 16.2:
NGC 6342 17 21 10 -19 35.2 2.2 9.5 15.0: 16.9
NGC 6356 17 23 35 -17 48.8 3.9 10 8.2 15.1 2.2 17.7
NGC 6355 17 23 59 -26 21.2 2.1 8.6 17.2
NGC 6352 17 25 29 -48 25.4 9: 7.8 13.4: 1.7 15.1
IC 1257 17 27 08 -7 05.6 5: 13.1 17.5: 1.8: 19.8
Terzan 2 17 27 33 -30 48.2 0.6 14.3: 19.8:
NGC 6366 17 27 44 -5 04.6 3.6 13 9.5: 13.6 2.2 15.7
Terzan 4 17 30 39 -31 35.7 16.0: 21.6?
Haute-Provence 1 17 31 05 -29 58.9 0.4: 1.2 12.5: 16.0 18.6
NGC 6362 17 31 55 -67 02.9 5.6 15: 8.1 12.5 1.7 15.5
Liller 1 17 33 25 -33 23.4 15.8: 20.5: 24.4:
NGC 6380 = Ton 1 17 34 28 -39 04.2 1.8 11.5: 17.0 19.5
Terzan 1 17 35 47 -30 28.9 15.9: 20.6:
Ton 2 = Pis 26 17 36 11 -38 33.2 12.2 18.2
NGC 6388 17 36 17 -44 44.1 5.2 6.8 14.8 2.1 17.2
NGC 6402 = M14 17 37 36 -3 14.8 5.5 11 7.6 14.0 2.3 17.2
NGC 6401 17 38 37 -23 54.6 2.4 7.4 17.3
NGC 6397 17 40 41 -53 40.4 12 31 5.3 10.0 1.5 12.9
Palomar 6 17 43 42 -26 13.4 0.6 11.6: 19.1
NGC 6426 17 44 54 +3 10.2 1.0 4.2 10.9 15.2 1.8 18.1
Djorgovski 1 17 47 28 -33 03.9 13.6:
Terzan 5 17 48 05 -24 46.8 0.4 2.4 13.9: 20.5: 22.5:
NGC 6440 17 48 53 -20 21.6 2.2 9.3 16.7: 2.3: 18.7
NGC 6441 17 50 13 -37 03.1 4.8 7.2 15.4: 2.3: 17.1
Terzan 6 17 50 46 -31 16.5 0.2 1.4 13.9: 20.5: 2.5: 22.3:
NGC 6453 17 50 52 -34 36.0 3.8 10.2 17.7
UKS 1 17 54 27 -24 08.7 17.3: 22? 25.5
NGC 6496 17 59 03 -44 16.0 2.8 8.6 14.3 1.8 16.5
Terzan 9 18 01 39 -26 50.4 0.2 16.0: 20.3:
ESO 456-SC38 18 01 49 -27 49.6 9.9: 15.5: 17.5:
NGC 6517 18 01 51 -8 57.5 1.5 4.0 10.1 16.0? 2.2: 18.0:
Terzan 10 18 02 57 -26 04.0 19.7: 22:
NGC 6522 18 03 35 -30 02.1 4.7 9.9 14.1: 2.1 16.9
NGC 6535 18 03 51 -0 17.8 0.8 3.4 9.3 12.8 1.9 15.7
NGC 6528 18 04 50 -30 03.4 2.5 9.6 15.5: 2.0: 17.1
NGC 6539 18 04 50 -7 35.2 2.1 7.9 8.9 15.9 18.3:
NGC 6540 18 06 09 -27 45.9
NGC 6544 18 07 21 -24 59.9 4.6 7.5: 12.8: 2.1: 15.0:
NGC 6541 18 08 02 -43 42.9 15 6.3 12.1 1.8 15.2
NGC 6553 18 09 16 -25 54.5 4.6 8.3 15.3 2.4 16.9
NGC 6558 18 10 18 -31 45.8 8.6 16.7
IC 1276 = Pal 7 18 10 45 -7 12.8 1.3 8.0 10.3: 15.7 2.4 17.7
Terzan 11 18 12 15 -22 44.5 16.4: 18.5? 20.5:
NGC 6569 18 13 39 -31 49.6 3.2 8.4 17.1
NGC 6584 18 18 38 -52 12.9 3.3: 7.9 13.5 1.7 16.5
NGC 6624 18 23 41 -30 21.7 4.4 7.6 13.8 2.0 16.1
NGC 6626 = M28 18 24 33 -24 52.2 6.9 6.9 12.0 1.5 15.7
NGC 6638 18 30 56 -25 29.8 2.6 7.3 9.2 15.0? 1.6: 15.9
NGC 6637 = M69 18 31 23 -32 20.9 4.9 7.7 13.7 1.8 16.0
NGC 6642 18 31 54 -23 28.5 2.9 8.9 16.3
NGC 6652 18 35 46 -32 59.4 2.7 6.0 8.5 13.3 1.9 15.9
NGC 6656 = M22 18 36 24 -23 54.2 16 5.2 10.7 2.0 14.2
Palomar 8 18 41 30 -19 49.6 2.6 10.9 15.4 17.3
NGC 6681 = M70 18 43 13 -32 17.5 4.0 7.8 14.0? 1.2: 15.6
NGC 6712 18 53 04 -8 42.4 4.9: 8.1 13.3 2.0 16.3
NGC 6715 = M54 18 55 03 -30 28.7 4.1 12 7.7 15.2 1.3: 18.2
NGC 6717 = Pal 9 18 55 06 -22 42.1 2.7 8.4 14.0? 1.3: 15.6
NGC 6723 18 59 33 -36 37.9 6.4 13 6.8 12.8 1.6 15.5
NGC 6749 19 05 15 +1 54.1 ~4 12.4: 16.5 19.7
NGC 6752 19 10 52 -59 58.9 12 29 5.3 10.5 1.9 13.8
NGC 6760 19 11 12 +1 01.8 3.1 9.6 9.0 15.6 17.5:
NGC 6779 = M56 19 16 36 +30 11.1 4.4 8.4 13.0: 1.8: 16.2
Terzan 7 19 17 44 -34 39.5 12.0 15.0 1.6 17.9
Palomar 10 19 18 02 +18 34.3 ~4 13.2 18 ? 19.4
Arp 2 19 28 44 -30 21.2 2.3 13.0 15.5 1.4 18.2
NGC 6809 = M55 19 39 59 -30 57.7 9.4 19 6.3 11.2 1.5 14.4
Terzan 8 19 41 44 -34 00.0 12.4: 15.0 1.5 18.0
Palomar 11 19 45 14 -8 00.4 5.0 9.8? 17.3
NGC 6838 = M71 19 53 46 +18 46.7 8.4 12.1 1.9 14.4
NGC 6864 = M75 20 06 05 -21 55.3 3.2 6.8 8.6 14.6 1.8 17.5
NGC 6934 20 34 12 +7 24.3 3.0 7.1 8.9 13.8 1.7 17.1
NGC 6981 = M72 20 53 28 -12 32.2 2.9 6.6 9.2 14.2 1.4 16.9
NGC 7006 21 01 29 +16 11.3 1.4 3.6 10.6 15.6 1.7 18.8
NGC 7078 = M15 21 29 58 +12 10.0 7.7 18 6.3 12.6 1.4 15.8
NGC 7089 = M2 21 33 27 -0 49.4 7.3 16 6.6 13.1 1.6 16.1
NGC 7099 = M30 21 40 22 -23 10.8 5.3 12 6.9 12.1 1.5 15.1
Palomar 12 21 46 39 -21 15.1 2.9 11.7: 14.6 1.6 17.1
Palomar 13 23 06 44 +12 46.3 0.7 13.8: 17.0: 1.0: 17.7
NGC 7492 23 08 27 -15 36.7 0.3 4.2 11.2: 15.5: 1.3: 17.6
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Name References
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1985 A&A 146,389
N 288 Alcaino & Liller 1980 AJ 85,1592
N 362 Harris 1982 ApJ Suppl 50,573
Fornax-1 Buonanno et al 1985 A&A 152,65
Fornax-2 Buonanno et al 1985 A&A 152,65
N1049=Fornax-3 Buonanno et al 1985 A&A 152,65
Fornax-4 Buonanno et al 1985 A&A 152,65
Fornax-5 Buonanno et al 1985 A&A 152,65; mu25 diam from Grillmair,
1998 Washington AAS meeting, HST obs
N1261 Alcaino 1979 A&A Suppl 38,61
Pal 1 Rosenberg et al. 1998 AJ 115,648 (no HB: prob an old open
cluster)
AM-1=E 1 Madore and Freedman 1989 ApJ 340,812
Eridanus Da Costa 1985 ApJ 291,230. Ortolani & Gratton 1989 A&A Suppl
79,155 V(tip)=18.0/1.29
Pal 2
N1851 Stetson 1981 AJ 86,687, Walker 1992 PASP 104,1063
N1904=M79 Stetson & Harris 1977 AJ 82,954
N2298 Alcaino 1974 A&A Suppl 13,55
N2419 Racine & Harris 1975 ApJ 196,413
Pyxis da Costa 1995 PASP 107,937; Irwin+ 1995 ApJ 453,L21;
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N2808 Harris 1975 ApJ Suppl 29,397; Alcaino & Liller 1986 AJ 91,87
E 3 Gratton & Ortolani 1987 A&A Suppl 67,373. intermediate-age
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Pal 3 Ortolani & Gratton 1989 A&A Suppl 79,155
N3201 Lee 1977 A&A Suppl 28,409
Pal 4 Burbidge & Sandage 1958 ApJ 127,527; Christian & Heasley 1986
ApJ 303,216
N4147 Sandage & Walker 1955 AJ 60,230
N4372 Hartwick & Hesser 1973 ApJ 186,1171; Alcaino & Liller 1986
AJ 91,87
Ru 106 Buonanno et al. 1993 AJ 105,184
N4590=M68 Harris 1975 ApJ Suppl 29,397
N4833 Menzies 1972 MNRAS 156,207
N5024=M53 Cuffey 1965 AJ 70,732
N5053 Sandage et al. 1977 AJ 82,389
N5139=omega Cen Cannon & Stobie 1973 MNRAS 162,207
N5272=M3 Sandage 1953 AJ 58,61; Johnson & Sandage 1956 ApJ 124,379;
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N5286 Harris et al. 1976 ApJ Suppl 31,13; Samus et al. 1995 A&AS
112,439
AM-4 Inman & Carney 1987 AJ 93,1166. V(HB) is for m-s turnoff;
intermediate-age cluster?
N5466 Buonanno et al. 1984 A&A Suppl 56,79; Nemec & Harris 1987
ApJ 316,172
N5634
N5694 Harris 1975 ApJ Suppl 29,397
I4499 Walker+ 1996 AJ 112,2026.
N5824 Harris 1975 ApJ Suppl 29,397; Cannon et al. 1990 MNRAS
243,151
Pal 5 Sandage & Hartwick 1977 AJ 82,459
N5897 Sandage & Katem 1968 ApJ 153,569
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N5927 Menzies 1974 MNRAS 169,79
N5946
N5986 Harris et al. 1976 ApJ Suppl 31,13
Pal 14 Harris & van den Bergh 1984 AJ 89,1816 (cen sfc br fainter
than muV = 25.0). position from Archinal = GSC 0957-0359.
N6093=M80 Harris & Racine 1974 AJ 79,472
N6121=M4 Alcaino & Liller 1984 ApJ Suppl 56,19; Cudworth & Rees 1990
AJ 99,1491
N6101 Alcaino 1974 A&A Suppl 18,9
N6144 Alcaino 1980 A&A Suppl 39,315
N6139
Terzan 3 Barbuy et al. 1998 A&AS 132,333
N6171=M107 Sandage & Katem 1964 ApJ 139,1088; Dickens & Rolland 1972
MNRAS 160,37
ESO 452-SC11 Bica et al. 1999 A&AS 136,363
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N6229 Carney et al 1991 AJ 101,1699
N6235 Liller 1980 AJ 85,673
N6254=M10 Harris et al. 1976 ApJ Suppl 31,13
N6256 Alcaino 1983 A&A Suppl 53,47
Pal 15 Harris & van den Bergh 1984 AJ 89,1816; Seitzer & Carney
1990 AJ 99,229
N6266=M62 Alcaino 1978 A&A Suppl 32,379
N6273=M19 Harris et al. 1976 ApJ Suppl 31,13
N6284
N6287 Stetson & West 1994 PASP 106,726
N6293 Janes & Heasley 1991 AJ 101,2097
N6304 Hesser & Hartwick 1976 ApJ 203,113
N6316 Armandroff 1988 AJ 96,588
N6341=M92 Sandage & Walker 1966 ApJ 143,313
N6325 Harris 1975 ApJ Suppl 29,397
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N6342 Armandroff 1988 AJ 96,588
N6356 Sandage & Wallerstein 1960 ApJ 131,598
N6355
N6352 Fullton et al. 1995 AJ 110,652
IC 1257 Harris et al. 1997, AJ 113,688
Terzan 2
N6366 Pike 1976 MNRAS 177,257
N6362 Alcaino 1972 A&A 16,220
Terzan 4
Haute-Provence 1 Ortolani et al. 1997, MNRAS 284,692
Liller 1 Ortolani et al. 1996, A&A 306,134
N6380 = Ton 1 Ortolani et al. 1998, A&AS 127,471
Terzan 1
Ton 2 = Pis 26
N6388 Alcaino 1981 A&A Suppl 44,33
N6402=M14 Smith-Kogon et al. 1974 AJ 79,387
N6401
N6397 Alcaino & Liller 1980 AJ 85,680
Pal 6
N6426 Zinn & Barnes 1996, AJ 112,1054.
Djorgovski 1
Terzan 5 Ortolani+ 1996 A&A 308,733
N6440 Martins et al. 1980 AJ 85,521; Ortolani+ 1994 A&ASuppl
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N6441 Hesser & Hartwick 1976 ApJ 203,97
Terzan 6 Barbuy+ 1997 A&AS 122,483.
N6453
UKS 1 Ortolani et al. 1997, A&AS 126,319
N6496 Armandroff 1988 AJ 96,588.
Terzan 9
E456-SC38 Ortolani et al. 1997, A&AS 126,319
Terzan 10 Ortolani et al. 1997, A&AS 126,319
N6517 Harris 1975 ApJ Suppl 29,397
N6522 Arp 1965 ApJ 141,43.
N6535 Liller 1980 AJ 85,1480; Anthony-Twarog & Twarog 1985 ApJ
291,595
N6528 van den Bergh & Younger 1979 AJ 84,1305
N6539 Armandroff 1988 AJ 96,588
N6540
N6544 Alcaino 1983 A&A Suppl 52,105
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N6553 Hartwick 1975 PASP 87,77. Guarnieri et al. (1998 A&A 331,70)
show that ground-based photom has serious zero-point offset
due to crowding. V(tip) and V(HB) derive from this newer
analysis.
N6558
I1276=Pal 7 Barbuy et al. 1998 A&AS 132,333
Terzan 11 Ortolani et al. 1998, A&AS 127,471; approximate diameter 1'.5
from estimate on V-band CCD frame.
N6569
N6584 Alcaino & Liller 1985 A&A Suppl 62,317
N6624 Liller & Carney 1978 ApJ 224,383
N6626=M28 Alcaino 1981 A&A Suppl 44,191; Rees and Cudworth 1991 AJ
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N6638 Alcaino & Liller 1983 AJ 88,1166
N6637=M69 Hartwick & Sandage 1968 ApJ 153,715; Harris 1977 PASP 89,482
N6642
N6652 Ortolani+ 1994 A&A 286,444
N6656=M22 Alcaino & Liller 1983 AJ 88,1330; Cudworth 1986 AJ 92,348
Pal 8 Armandroff 1988 AJ 96,588
N6681=M70 Harris 1975 ApJ Suppl 29,397
N6712 Sandage & Smith 1966 ApJ 144,886; Cudworth 1988 AJ 96,105.
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N6723 Menzies 1974 MNRAS 168,177
N6749 Rosino et al. 1997, MNRAS 289,745; Kaisler et al. 1997
PASP 109,920
N6752 Buonanno 1986 A&A Suppl 66,79
N6760 Armandroff 1988 AJ 96,588
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Pal 10 Kailser et al. 1997 PASP 109,920.
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1998 MNRAS 294,315
Pal 11
N6838=M71 Arp & Hartwick 1971 ApJ 167,499 and Cudworth 1985 AJ 90,65
N6864=M75 Harris 1975 ApJ Suppl 29,397
N6934 Harris & Racine 1973 AJ 78,242
N6981=M72 Dickens 1972 MNRAS 157,281
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N7089=M2 Harris 1975 ApJ Suppl 29,397; Cudworth & Rauscher 1987 AJ
93,856
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N7492 Buonanno et al. 1987 A&A Suppl 67,327
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