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IC 3935 = NGC 4849. The problem here is that the galaxy is in a crowded area of the sky (the Coma Cluster), and d'Arrest's position is 4 arcmin south of the galaxy. This was corrected by Spitaler and mentioned in the first IC by Dreyer, but he did not notice that Javelle's object was exactly at Spitaler's position, too. So, two numbers.
Lacaille's catalogue
The Messier objects
Dunlop's catalogue
The Bennett objects
The Caldwell list
Named DSOs
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