John Herschel discovered NGC 4751 = h3434 on 15 Mar 1836 and recorded "B; R; first vg, then vsbM; 50"." His position matches ESO 323-029 = PGC 43723, although MCG fails to label its entry as NGC 4751.

400/500mm - 18" (3/28/09): this member of AGC 3526 appeared fairly faint, moderately large, elongated 2:1 N-S, 1.0'x0.5', small bright core. Located on the SE side of AGC 3526 (Centaurus cluster), 1.5° SE of NGC 4696 and 30' NW of mag 5.5 HD 112213.

Notes by Steve Gottlieb