Albert Marth discovered NGC 3092 = m 191 on 22 Jan 1865 and noted "eF, S". His position is 2.5' south of CGCG 008-019 = PGC 28967. His offset is a bit odd since nearby NGC 3093 was accurate in declination. Not found by Bigourdan.

400/500mm - 17.5" (3/16/96): extremely faint, small, elongated 2:1 SSW-NNE, 0.8'x0.4', very low surface brightness. A mag 13 star lies 1.7' SE and a mag 12 star 2' N. Located 5' SE of NGC 3090 in a group.

Notes by Steve Gottlieb