Stephane Javelle discovered IC 4304 = J. 3-1264, along with IC 4301, 4302, 4305 and 4306, on 1 Jul 1896. His position is accurate.

600/800mm - 24" (7/2/16): at 260x; fairly faint to moderately bright, very elongated 3:1 SW-NE, 45"x15", small bright core, stellar nucleus. Brightest in a group of six IC galaxies including IC 4306 4.6' E, IC 4305 2.8' N and IC 4301 5.7' SW, all within an 11' x 6' region (elongated E-W).

Notes by Steve Gottlieb