William Herschel discovered NGC 2750 = H III-291 on 11 Mar 1785 (sweep 384) and remarked "vF, pL, R, bM." Auwer's reduction placed this object 1° too far north, but this error was caught by John Herschel when he compiled the GC. Heinrich d'Arrest made 4 observations, first on 21 Feb 1863.

400/500mm - 17.5" (4/6/02): fairly faint, fairly small, round, 1.0' diameter. Moderately concentrated to a small bright core and a stellar nucleus. Forms the NE vertex of a right triangle with mag 9.7 SAO 80618 4' WSW and a mag 11.5 star 3.5' SSW. A superimposed companion on the west side was not seen.

17.5" (4/6/91): fairly faint, fairly small, round, even concentration to a small bright core, halo gradually fades into background. Located 3.9' NE of mag 9.3 SAO 80618.

600/800mm - 24" (3/22/14): fairly faint to moderately bright, moderately large, strong concentration with a very small bright core and quasi-stellar nucleus, fairly large slightly elongated halo 1.2'x1.0'. A very faint, elongated brightening was visible at the west edge. This object is catalogued as KPG 186A = PGC 93099, but on the SDSS it appears more likely to be a bright, knotty, star forming region.

Notes by Steve Gottlieb