DeLisle Stewart discovered IC 4751 = D.S. 501 on a plate taken 20 Jul 1901 at Harvard's Arequipa Station in Peru. He noted "vF, vS, R, bM."

600/800mm - 25" (10/16/17 - OzSky): at 397x; moderately bright, fairly small, elongated 3:2 N-S, 30"x20". Located near the midpoint of mag 9.9 HD 172184 3.8' SW and a mag 10.5 star 3.8' NE. Forms a close pair with IC 4753 1.6' E. In the northern outskirts of ACO S805, 1.3° from IC 4765 (part of the Pavo-Indus Supercluster).

Notes by Steve Gottlieb