UGC 10181 PGC 51597
Umi
☀14.9mag
Ø 36'' / 12''

Lewis Swift discovered IC 1139 = Sw. VII-58, along with IC 1143, on 18 Jun 1888 and recorded "eeeF; S; lE; eee diff.; np of 2 [with IC 1143]." His position is 1' too far NE, but clearly determines this galaxy. Nevertheless, MCG misidentifies MCG +14-07-019 (situated 8' NW of IC 1139) as IC 1139

600/800mm - 24" (6/22/17): faint to fairly faint, small, elongated ~3:2 SW-NE, 18"x12". Brighter IC 1143 lies 8' SSE.

Notes by Steve Gottlieb