Édouard Stephan discovered NGC 7784 = St XIII-99, along with NGC 7786, on 1 Oct 1883. His position is accurate.
400/500mm - 17.5" (7/20/90): very faint, very small, round, broad concentration. Forms a pair with NGC 7786 10' S. Located 6' NE of mag 8.6 SAO 91575.
Notes by Steve Gottlieb