Albert Marth discovered NGC 455 = m 39 on 27 Oct 1864 with Lassell's 48" on Malta and logged "F, vS, alm stell". His position is 1' N of UGC 815 = PGC 4572
400/500mm - 17.5" (10/5/91): fairly faint, fairly small, elongated 3:2 NNW-SSE, bright core. Located 2.5' NW of a mag 10.5 star.
Notes by Steve Gottlieb