Guillaume Bigourdan discovered IC 585 = Big. 157 on 18 Mar 1890. His Comptes Rendus position is about 2' too far north (but matches in RA) and there is no mention of nearby N3080.

400/500mm - 17.5" (3/29/97): faint, small, round, bright core, 40" diameter. Located 4.4' SW of NGC 3080 and 2.9' SSW of a mag 13.5 star (mentioned in observation of NGC 3080). Very similar size and magnitude as NGC 3080 and surprisingly, possibly easier visually due a brighter core.

Notes by Steve Gottlieb