Stephane Javelle discovered IC 121 = J. 2-528, along with IC 123 = J. 2-529, on 6 Jan 1894. Both positions are offset about 1.2' too far NNW, but the identifications are certain.

600/800mm - 24" (10/1/16): at 375x; fairly faint, fairly small, oval 3:2 WSW-ENE, 24"x16" (central region), contains a small bright nucleus that gradually increases to the center. Forms a physical pair with IC 128 2.6' NW.

Notes by Steve Gottlieb