Stephane Javelle discovered IC 4306 = J. 3-1266, along with IC 4301, 4302, 4304 and 4305, on 1 Jul 1896. His position is accurate.

600/800mm - 24" (7/2/16): at 260x; faint, small, slightly elongated, ~15"x10" (core region only), very faint stellar nucleus. I didn't pick up the very low surface brightness arms. A mag 14 star (close double) is less than 1' W. Located 4.6' E of IC 4304 in a group of 6 IC galaxies.

Notes by Steve Gottlieb