Lewis Swift discovered NGC 5763 = Sw. III-85, along with NGC 5762, on 22 May 1886, and recorded "eeeF; pS; ee diff; following of 2 [with NGC 5762]." His RA is 22 sec too large but his relative positions for the pair is good. Both Herbert Howe and Bigourdan measured an accurate position (given in the IC 2 Notes).

400/500mm - 17.5" (6/3/00): very faint, extremely small, round, 15" diameter, low even surface brightness. Fainter of a pair with NGC 5762 4.4' WSW. Forms the eastern vertex of an isosceles triangle with two mag 15 stars 1.5' SW and NW.

Notes by Steve Gottlieb