Édouard Stephan discovered NGC 911 = St X-7 on 30 Oct 1878 with the 31" reflector at the Marseille Observatory and recorded "vF, vS, R, gbM". His position matches UGC 1878 = PGC 9221. Except for NGC 898 and 923 (discovered by WH), Stephan discovered all the NGC galaxies in the cluster on this night.

300/350mm - 13.1" (10/20/84): fairly faint, small, slightly elongated. Located 2.1' S of mag 9.2 SAO 38019. Member of AGC 347 with NGC 910 8.4' SSW.

13.1" (11/13/87): fairly faint, just south of a 9th magnitude star.

600/800mm - 24" (11/23/19): at 375x; moderately bright, fairly small, elongated 2:1 WNW-ESE, 40"x20", contains a bright core that increases to a stellar nucleus. A mag 9.3 star (HD 14933) is 2' N. Located in the core of AGC 347 with NGC 909 6' NW and CGCG 539-018 4.5' SW.

Notes by Steve Gottlieb