?douard Stephan discovered UGC 3840 on 6 Feb 1874. This galaxy was not included in any of his discovery lists, but was listed in Emmanuel Esmiol's 1916 re-reduction of Stephan's observations as an "Anonyme" nebula. His description reads "vF, vS, R, bM, well-defined". Apparently Stephan overlooked this object when compiling his lists, but it should have received a NGC designation. As UGC 3842 is only slightly fainter, I'm surprised Stephan didn't pick up this galaxy at the same time.

400/500mm - 18" (1/26/11): fairly faint, fairly small, round, sharply concentrated with a small bright core, 0.6' diameter. A mag 12.7 star is off the NNE side, 0.9' from center. A very faint star is embedded in the halo on the WNW side of the core and a very faint star is just outside the halo on the NW side. Forms a pair with UGC 3842 5' SE. Located 10.6' NNE of mag 7.5 HD 58162.

Notes by Steve Gottlieb