DeLisle Stewart discovered IC 4754 = D.S. 504, along with many other IC's, on a plate taken on 20 Jul 1901 at Harvard's Arequipa Station in Peru. He noted "eF, S, R, 0.7' diameter., poss. ring neb, stell N."
600/800mm - 25" (10/16/17 - OzSky): at 397x; faint, fairly small, round, 0.6' diameter, low surface brightness, very weak concntration. Fainter than expected based than expected though images reveal a face-on barred ring of low surface brightness. Two mag 13.6 and 13.8 stars are very close to the south and southwest edge. A mag 10.7 star is 5' SW and IC 4751 and 4753, a 1.6' pair, lies 8' SSW. This outlying member of the Pavo II cluster = ACO S805 is located 1° WNW of mag 4.2 Lambda Pavonis and 1.4° NNW of the center of the cluster.
Notes by Steve Gottlieb