John Herschel discovered NGC 7733 = h4001, along with NGC 7734, on 2 Nov 1834 and logged "eF; S; R; the p of 2; pos from the other = 210°."

600/800mm - 25" (10/15/17 - OzSky): at 244x and 397x; fairly faint, fairly small, roundish, 35" diameter. Very weak, if any, concentration. Forms a close interacting pair with slightly brighter NGC 7734 1.25' NE. Located 25' NE of mag 6.9 HD 222272. On the DSS and Arp-Madore images, both galaxies are highly disturbed.

Notes by Steve Gottlieb