DeLisle Stewart discovered IC 4770 = DS 515 on a plate taken 20 Jul 1901 at Harvard's Arequipa Station in Peru. He noted "eeF, eS, bM."

600/800mm - 30" (10/13/15 - OzSky): at 303x; very faint, small, round, 20" diameter, fairly low surface brightness. A mag 14.5 star is involved on the west end and interferes with viewing. Located 6.5' SE of IC 4765 in the ACO S805 cluster.

Notes by Steve Gottlieb