William Herschel discovered NGC 1366 = H III-857 = h2553 on 9 Oct 1790 (sweep 972) and recorded "vF, S, irr F, lbM." His position is at the south edge of the galaxy.

300/350mm - 13.1" (10/10/86): fairly faint, small, bright core, thin faint extensions 2:1 N-S, 1.0'x0.5'. Located 6.8' S of mag 6.2 SAO 194375.

Notes by Steve Gottlieb