Heinrich d'Arrest discovered NGC 786 on 20 Sep 1865 with the 11-inch refractor at Copenhagen. His position (measured on 2 nights) is 1' too far south-southwest.
400/500mm - 17.5" (12/18/89): very faint, very small, round, even surface brightness. NGC 792 lies 12' ENE.
Notes by Steve Gottlieb