Stephane Javelle discovered IC 1142 = J. 1-356 on 27 Jun 1892. There is nothing at his position but Harold Corwin found that Javelle made a 1 minute error in his RA offset from his comparison. Once this is corrected, his position is a good match with UGC 10055.

600/800mm - 24" (6/22/17): at 200x; very faint, fairly small, round, 30" diameter, low even surface brightness. Located 24' due east of mag 4.1 Kappa (35) Ser.

Notes by Steve Gottlieb