John Herschel discovered NGC 7755 = h4005 on 27 Sep 1834 and recorded "B; L; R; psmbM; 90" diameter." His mean position from two consecutive sweeps is fairly accurate.

Harold Knox-Shaw first identified this galaxy as an "open spiral" in 1915, based on a photograph taken with the 30" Reynolds reflector at the Helwan Observatory between 1912-14.

200/250mm - 8" (8/16/82): very faint, moderately large, elongated 3:2 E-W, diffuse.

400/500mm - 17.5" (12/16/95): moderately bright, moderately large, elongated 3:2 SW-NE, 2.0'x1.3'. Fairly low surface brightness halo surrounding a bright 30" rounder core and an occasional stellar nucleus. A mag 13 star is 2.2' E of center.

Notes by Steve Gottlieb