Heinrich d'Arrest discovered NGC 3925 on 19 Feb 1863 with the 11-inch refractor at Copenhagen. His position, measured twice, matches CGCG 127-075 = PGC 37078, and he mentions the double star (in my notes) that follows by 19 seconds of time. The RNGC declination is 2' too far north.

400/500mm - 17.5" (5/4/02): faint, small, elongated 5:3 SSW-NNE, 0.7'x0.4'. Located 4.5' NE of a mag 10.5 star. A mag 11.5 star lies 4' ESE and a nice equal mag 13 pair [12" separation] is 4' ENE. The double system NGC 3926 is the field 8' N.

Notes by Steve Gottlieb