John Herschel discovered NGC 2517 = h3110 on 16 Mar 1836 and noted "F; vS; R; between 3 stars 13 and 14 m." His position is 5 sec of RA east and 1' north of MCG -02-21-003 = PGC 22578 and the description of nearby stars matches. This galaxy is located only 10 degrees from the galactic equator.

400/500mm - 17.5" (2/8/91): fairly faint, small, round, strong concentration with small bright core. Located in a rich star field between a mag 13 double star 1.1' S at 20" oriented E-W and a mag 11.5 star 1.0' NW. Mag 8.5 SAO 153747 lies 4.2' SW. Located 10° from the galactic equator.

Notes by Steve Gottlieb