Édouard Stephan discovered NGC 3501= St XI-10 on 23 Apr 1881 and recorded "vF, gbM, mE N30°E, 3' long." His position and description matches UGC 6116.

400/500mm - 17.5" (4/1/95): faint, edge-on 7:1 SSW-NNE, 3.0'x0.4', low surface brightness, very slightly brighter elongated core. A mag 14 star is 2.3' SE of center. NGC 3507 lies 12.7' NE.

Notes by Steve Gottlieb