John Herschel discovered NGC 3258 = h3256 on 2 May 1834 and recorded "vF; S; R; sbM; 12"." He observed this galaxy (along with NGC 3257 and 3258) on 4 nights.

400/500mm - 17.5" (3/28/87): fairly faint, small, round, bright core. A pair of stars are near north. Forms a pair with NGC 3260 2.6' E in the Antlia Cluster (ACO S636).

Notes by Steve Gottlieb