Lewis Swift discovered NGC 6373 = Sw. I-58 on 13 Jun 1885 and recorded "eeeF; pL; vv diff.; forms a right angle triangle with two stars, preceding star in the same parallel 30 seconds distant." His position is matches UGC 10850, a face-on SBc galaxy with low surface brightness arms. The star that Swift mentions "in the same parallel" is 32 seconds following, not preceding.

400/500mm - 17.5" (6/18/88): extremely faint, fairly small, very diffuse. Appears very faint for V = 13.6.

Notes by Steve Gottlieb