William Herschel discovered NGC 924 = H III-474 on 29 Nov 1785 (sweep 481) and logged "eF, vS, iR, confirmed at 240 power." His position (Auwer's reduction) is a close match with UGC 1912 = PGC 9302.

400/500mm - 17.5" (1/20/90): fairly faint, fairly small, elongated SW-NE, broadly concentrated halo, distinct stellar nucleus.

600/800mm - 24" (1/1/16): at 375x; moderately bright, oval SW-NE, 45"x30", sharply concentrated with a small bright core and quasi-stellar nucleus. The outer halo has a low surface brightness. Forms a close pair with CGCG 462-013 2.1' NE. This physical companion appeared extremely faint, low surface brightness, ~15" diameter. Member of a large group (LGG 061), inlcuding NGC 932, 935, 938 and 976.

Notes by Steve Gottlieb