Stephane Javelle discovered IC 1634 = J. 3-836, along with IC 1635, on 23 Dec 1897 and recorded "F, R, 20" to 25", gbMN, granular."

400/500mm - 17.5" (11/26/94): very faint, very small, round, 15" diameter, very weak concentration. Forms the north member of a similar double system with IC 1635 separation 40" between centers. The halos are almost in contact. A mag 14 star lies 50" W. These are the brightest galaxies in the core of rich cluster AGC 154 which lies at a redshift of z = 0.067 (billion light years!)

Notes by Steve Gottlieb