Albert Marth discovered NGC 3090 = m 190 on 22 Jan 1865 and noted "vF, vS." His position matches CGCG 008-016 = PGC 28945. In a group of galaxies discovered by Marth.

400/500mm - 17.5" (3/16/96): fairly faint, small, slightly elongated, 0.5'x0.4' NW-SE, small bright core. Located 34" S of a mag 11 star.

17.5" (4/4/92): fairly faint, small, round, bright core. A mag 10.5 star is at the north edge 33" from center which detracts from viewing. Brightest in a group of six NGC galaxies (MKW 1 = WBL 248) with NGC 3086 5' WSW.

Notes by Steve Gottlieb