William Herschel discovered NGC 4101 = H III-326 = h1083 on 6 Apr 1785 (sweep 393) and recorded "eF, vS. 240 verified it with great difficulty. It was in the field I gaged, otherwise I should certainly have overlooked it." John Herschel made two observations and his mean position is a good match with UGC 7093 = PGC 38373.

400/500mm - 17.5" (5/11/02): faint, small, irregularly round, 0.6'x0.5', weak even concentration to the center.

Notes by Steve Gottlieb