Identification of Lacaille's Objects

Charles Messier's Identifications

(1771/1780/1781, Messier Catalog and Appendices; identified by observation)

Lac I.6         M83 (1781)
Lac I.9         M4  (1780)
Lac I.11        M69 (1780, probably misidentification; in 1764 didn't find it)    
Lac I.12        M22 (1780)
Lac I.14        M55 (1780)
Lac II.14       M7  (1780)
Lac III.12      M6  (1780)
Lac III.13      M8  (1780)

Dunlop (via Bode)

(1828)

Lac I.1         Dun  18 [47 Tuc, Bode]            = NGC  104
Lac I.2         Dun 142 [30 Dor, Bode]            = NGC 2070
Lac I.4         Dun 164 [12 Mus, Bode]            = NGC 4833
Lac I.5         Dun 440 [Omega Cen, Bode]         = NGC 5139
Lac I.6         Dun 628 [155 Cen, Bode] = M83     = NGC 5236
Lac I.7         Dun 273 [201 Cen, Bode]           = NGC 5281
Lac I.8         Dun 514 [44 Nor, Bode]            = NGC 6124
Lac I.10        Dun 520 [155 Sco, Bode]           = NGC 6242
Lac II.7        Dun 386 [11 Robur Caroli, Bode]   = NGC 3228
Lac II.10       Dun 323 [5 Cen, Bode]             = NGC 3532
Lac II.12       Dun 301 [Kappa Cru, Bode]         = NGC 4755
Lac II.13       Dun 499 [150 Sco, Bode]           = NGC 6231
Lac III.6       Dun 309 [Eta Robur Caroli, Bode]  = NGC 3372
Lac III.10      Dun 304 [Lambda Cir, Bode]        = NGC 6025

Lac II.6        Dun 490 [f 396 Argus, Bode]       = Tr 10
Lac III.4       Dun 330 [485 and 492 Argus, Bode] = IC 2488

Arthur Auwers' Identifications

(1862)

Lac I.3         Dun 535, h 3103                   = NGC 2477
Lac I.11        (not M69)                         = NGC 6634
Lac I.13        Dun 69                            = NGC 6777
Lac II.3        h 3111                            = NGC 2516
Lac II.4        Dun 563, h 3116                   = NGC 2546
Lac II.6        Dun 490                           = Tr 10
Lac II.8        Dun 321?                          = NGC 3293
Lac II.9        Theta Argus (Theta Car)           = IC 2602
Lac II.11       Dun 324
Lac III.2       h 3117                            = NGC 2547
Lac III.4       Dun 330                           = IC 2488
Lac III.7       Dun 289, h 3352                   = NGC 3766
Lac III.8       Dun 342, h 3573                   = NGC 5662
Lac III.9       Dun 314
Lac III.11      Dun 366, h 3693                   = NGC 6397
Lac III.14      Dun 329

John Herschel's Identifications

(1864, GC; also has Auwers')

Lac I.11        GC 5076 (not M69)          = NGC 6634

J.L.E. Dreyer

(1888, NGC)

Lac I.1         NGC 104, Dun 18

Owen Gingerich's Identifications

(1960)

Lac I.13        NGC 6752 ?
Lac II.5        IC 2391
Lac II.9        IC 2602
Lac III.4       IC 2488
Lac III.5       pt of NGC 3372
Lac III.6       pt of NGC 3372

Hans Vehrenberg's Presumable Identification

(1965/1978)

Lac II.8        NGC 3293

Kenneth Glyn Jones

(1969/1975)

Lac I.13        NGC 6777 asterism
Lac II.1        asterism
Lac II.11       asterism
Lac III.9       asterism

(Nov 10, 1994; private communication to Glen Cozens)

Lac II.6        probably Tr 10 (Cr 203)
Lac II.8        NGC 3293
Lac III.3       probably IC 2395

Hartmut Frommert's Identification

(1996-1998, using the Digital Sky Survey based on POSS/UKS plates)

Lac III.3       OC vdB-Ha 47 [probably IC 2395]

Brian Skiff

(private communication to Brent A. Archinal, cited in Archinal and Hynes (2003))

Lac II.6        Tr 10
Lac III.3       IC 2395

Glen Cozen's Identifications

(communicated December 1999, )

Lac I.11        NGC 6634 stars mag 8.3, 7.8, 8.7 is not M69
Lac I.13        NGC 6777 stars m 8.3, 8.0
Lac II.1        twelve stars mag 7.6 to 9.5
Lac II.2        eight stars mag 5.9 to 8.9
Lac II.6        OC Trumpler 10
Lac II.11       line of 8 stars mag 6.6 to 8.5
Lac III.1       star mag 7.2
Lac III.3       OC vdBH47
Lac III.9       three stars  mag 8.1, 7.6, 7.9
Lac III.14      three stars  mag 8.4, 8.2, 9.1

Ronald Stoyan's Identifications

(communicated April 2000, )

Lac I.13        three stars mag 8-9
Lac II.2        OC Cr 140
Lac II.6        OC Tr 10 = Cr 203
Lac III.1       star HD 32806 = SAO 217150 of mag 7.1
Lac III.3       OC vdBH47 = IC 2395
Lac III.5       OC Cr 228

Summary

Lac I.1         NGC 104         JD
Lac I.2         NGC 2070        JD
Lac I.3         NGC 2477        Auw
Lac I.4         NGC 4833        JD
Lac I.5         NGC 5139        JD
Lac I.6         M83             M; JD
Lac I.7	        NGC 5281        JD
Lac I.8	        NGC 6124        JD
Lac I.9	        M4              M
Lac I.10        NGC 6242        JD
Lac I.11        NGC 6634        Auw, JH: GC 5076 (NGC 6634); M: M69 (probably misidentification)
Lac I.12        M22             M
Lac I.13        NGC 6777 2 st   AA/JH
Lac I.14        M55             M

Lac II.1        -               kgj
Lac II.2        Cr 140          rs
Lac II.3        NGC 2516        Auw
Lac II.4        NGC 2546        Auw
Lac II.5        IC 2391         Veh
Lac II.6        Tr 10           kgj (94), bs, gc, rs
Lac II.7        NGC 3228        JD
Lac II.8        NGC 3293        Veh, kgj (94)
Lac II.9        IC 2602         Veh
Lac II.10       NGC 3532        JD
Lac II.11       -               Auw
Lac II.12       NGC 4755        JD
Lac II.13       NGC 6231        JD
Lac II.14       M7              M

Lac III.1       -               gc
Lac III.2       NGC 2547        Auw
Lac III.3       vdB-Ha47        kgj (94), hf, bs, gc, rs
Lac III.4       IC 2488         Veh
Lac III.5       Cr 228          rs
Lac III.6       NGC 3372        JD
Lac III.7       NGC 3766        Auw
Lac III.8       NGC 5662        Auw
Lac III.9       -               Auw
Lac III.10      NGC 6025        JD
Lac III.11      NGC 6397        Auw
Lac III.12      M6              M
Lac III.13      M8              M
Lac III.14      -               Auw

References:

Brent A. Archinal and Steven J. Hynes, 2003. Star Clusters. Willmann-Bell, Inc., Richmond.

Hartmut Frommert [contact]
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