Albert Marth discovered NGC 3042 = m 185 on 30 Apr 1864 and recorded "pB, S, vlE, gbM." His position is accurate.
400/500mm - 17.5" (2/8/91): fairly faint, very small, elongated 2:1 ~E-W, very small bright core, very faint extensions from core. A mag 13 star is 1.3' SW of core.
Notes by Steve Gottlieb