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IC 1111
IC 1111
History and Accurate Positions for the NGC/IC Objects (Corwin 2004)
IC 1111 = NGC 5876 with a +5 minute error in the RA. Swift calls the object "pB" and notes that it makes a "triangle with 2 stars." The stars are 2 arcmin northwest and 2.5 arcmin southwest. Interestingly, NGC 5876 was one of Swift's earliest discoveries, and was included by him in his first list of new nebulae.
CGCG chose a considerably fainter galaxy (UGC 09800 = CGCG 274-037) as IC 1111. This galaxy is indeed closer to Swift's position, but the differences are not simple digits -- 1m 38s, and 2.7 arcmin. There are also no stars nearby that Swift would have noted as a triangle with the galaxy.
Unfortunately, this error has propagated through the catalogues, so UZC, LEDA, and Wolfgang (in his first edition) have incorrectly put the IC number on the fainter object.
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Favourite lists
Lacaille's catalogue
The Messier objects
Dunlop's catalogue
The Bennett objects
The Caldwell list
Named DSOs
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