William Herschel discovered NGC 2764 = H III-236 = h557 on 16 Nov 1784 (sweep 318) and logged "eF, lE, between 2 pretty bright stars, verified with 240 power." His position was just off the southwest edge of UGC 4794. Lord Rosse's observer on 23 Feb 1857 noted a faint double star 1' SE.

400/500mm - 17.5" (1/28/89): fairly faint, fairly small, elongated 2:1 ~N-S, weak concentration. Located between a mag 11.5 star 2.2' N and a mag 10.5 star 2.3' SSE.

Notes by Steve Gottlieb