Édouard Stephan discovered NGC 7786 = St XIII-100, along with NGC 7784, on 1 Oct 1883. His micrometric position is very accurate.
400/500mm - 17.5" (7/20/90): fairly faint, fairly small, oval 3:2 SSW-NNE, bright core. Pair with NGC 7784 10' N.
Notes by Steve Gottlieb