Édouard Stephan discovered NGC 5508 = St XII-62 on 20 Apr 1882. His micrometric position matches UGC 9094.

400/500mm - 17.5" (7/17/01): fairly faint, fairly small, elongated 5:3 NW-SE, 1.2'x0.7', broad concentration to a 25" brighter core. Situated within a fairly striking group of stars with three wide, brighter pairs. Collinear with mag 10 SAO 83223 3.6' NE and a mag 11.5 star 2' NE. About 4' SSE is a trio of mag 11/12/13 stars (including a close pair). CGCG 133-017 lies 24' due east.

17.5" fairly faint, fairly small, elongated 5:3 NW-SE, 1.2'x0.7', broad concentration to a 25" brighter core. Situated within a fairly striking group of stars with a mag 10/11.5 wide pair collinear with the galaxy a few arcminutes NE. A trio of mag 10/11/12 stars lie 5' NE and another fainter pair is also near.

600/800mm - 24" (5/25/14): at 282x appeared moderately bright, fairly small, elongated 3:1 NW-SE, 45"x30". Contains a small brighter core and a stellar nucleus. Rose 17, an extremely faint triplet, lies 20' NNW.

Notes by Steve Gottlieb