Andrew Cooper
Aug 28, 2011    Hale Pohaku, HI (map)
46cm f/4.5 Newtonian, Deep Violet @ 175x
Seeing: 7 Transparency: 7 Moon: 0%

Small, faint, round 1' diameter, 4' east of NGC1332

Harold Corwin

IC 324 = NGC 1331 is the fainter of two nebulae here discovered by William Herschel (the brighter is NGC 1332). His place for NGC 1331 is poor, however, and falls coincidentally near a vF wisp that he could not have seen. The RNGC unfortunately identifies the wisp as NGC 1331 = IC324. The galaxy that Herschel actually saw was correctly measured at Leander McCormick and by Bigourdan, though Bigourdan did not accept the identify with NGC 1331 and published the galaxy as new (Big 142). Dreyer (M.N. 73, 37, 1912) makes the identity clear, but recommends dropping the number NGC 1331 in favor of IC 324. However, since the NGC number has been in general use for many years (e.g., in the Mt. Wilson and Helwan lists, in RC1 and 2, etc.), I have retained it here.

― IC Notes by Harold Corwin

Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.

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