DeLisle Stewart discovered IC 2510 = DS 320 on a plate taken in Apr 1900 at Harvard's Arequipa Station. He noted "eF, vS, cE at 140°, bM, susp."
400/500mm - 18" (3/17/07): fairly faint, fairly small, elongated 3:2 NW-SE, weak concentration. Located 3.7' E of a mag 9.8 star. IC 2511 lies 21' E.
Notes by Steve Gottlieb