Heinrich d'Arrest discovered NGC 2930, along with NGC 2929 and 2931, on 21 Feb 1863. His position, measured on 3 nights, matches CGCG 122-035 = PGC 27404.

400/500mm - 17.5" (4/15/93): second and faintest of three. Very faint, small, elongated 4:3 NW-SE. A mag 13 star is 1.7' SW. In a tight trio with NGC 2929 2.8' SSW and NGC 2931 2.5' NNE.

600/800mm - 24" (2/15/18): at 375x; faint to fairly faint, fairly small, roundish, 30" diameter, low even surface brightness. Faintest in a triplet at the midpoint of NGC 2929 2.6' SSW and NGC 2931 2.5' NNE. NGC 2930 is a blue emission-line galaxy (WAS 1) and the site of a recent supernova (SN 2005M)

Notes by Steve Gottlieb