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IC 824
IC 824
History and Accurate Positions for the NGC/IC Objects (Corwin 2004)
IC 824 = NGC 4678. Here the fault lies with the NGC position from the second Leander McCormick list -- the RA is 3 minutes of time off. Otherwise the description pretty well matches, including the "* f 2s." Javelle's position (re-reduced with respect to the Tycho-2 position for his comparison star) is very good, and he apparently had a better view of the galaxy than did Frank Leavenworth. Javelle noted that the galaxy was extended east-west, and that it has at least two bright "nuclei." Leavenworth even questions its nebular character.
Given the chronically poor positions from Leander McCormick, I don't doubt that the two catalogue numbers refer to the same galaxy.
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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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