Francis Leavenworth discovered NGC 640 = LM 2-315 in 1886 and reported "mag 15.8; 0.6'; lE 170°; lbMN; *10 s 4'.". His position is only 9 sec of RA east of MCG -02-05-031 = PGC 6130 and the star 4' S is just where he placed it.

400/500mm - 17.5" (10/29/94): very faint, small, round, 20" diameter, no concentration. Collinear with a mag 11-12 double star (30" separation) located 6' NNE. A mag 11.5 star lies 4.0' SSW of center.

Notes by Steve Gottlieb