Forms a pair with MCG +09-28-011 3' SSE. The companion appeared faint, elongated 5:2 or 3:1 ~E-W, ~27"x9", low even surface brightness.

Lewis Swift discovered IC 1237 = Sw. IX-71 on 23 Jun 1890 and recorded "eF, pL, lE, * nr p[receding]." His position is 1.5' too far north, but the identification is certain.

600/800mm - 24" (6/21/17): at 375x; fairly faint to moderately bright, elongated 5:2 SSW-NNE, 40"x15", broad concentration. Sometimes a low surface halo increases the dimensions to at least 50"x25". A mag 11.8 star lies 1.6' NW. Located 10' SE of mag 8.7 HD 153237.

Notes by Steve Gottlieb