Édouard Stephan discovered NGC 2557 = St VIIIb-29 on 2 Feb 1877 with the 31" silvered-glass reflector at the Marseille Observatory. Esmiol's re-reduced position is an exact match with UGC 4330.
400/500mm - 17.5" (2/8/91): fairly faint, small, round, gradually brighter core. Located 5' SE of mag 8.2 SAO 80087 in the Cancer I galaxy cluster.
Notes by Steve Gottlieb