Albert Marth discovered NGC 2936 = m 175 on 3 Mar 1864, along with NGC 2927, and simply noted "vF, iR." His position is 1' S of UGC 5130. The dimensions of NGC 2936 and 2937 appear reversed in the RC3 and MCG.

400/500mm - 17.5" (3/25/95): fairly faint, fairly small, elongated 4:3 E-W, 0.8'x0.6'. A mag 13/14 double star at 18" separation is 1' NNW and two mag 13.5/14 stars at 36" separation are 2' NNE. Forms a very close pair with NGC 2937 0.8' S.

900/1200mm - 48" (2/20/12): bright disrupted galaxy with a highly irregular surface brightness and a curving shape with a faint tail. At 375x and 488x, the central region is extended E-W, roughly 30"x20", with a very small bright nucleus. A low surface brightness "tail" is attached on the west side of the bright central region. The relatively broad tail sweeps south-southwest for ~45", gradually dimming out due west of the center of NGC 2937. The tail significantly increases the overall dimensions of the galaxy to at least 1.2'x0.6'.

Forms a close pair with NGC 2937 to the south with the cores of the galaxies separated by less than 1'. A mag 13 star is 1' NW and just beyond is LEDA 1237172, a very low surface brightness streak extending ~18"x5" NW-SE. Arp describes LEDA 1237172 as a "shred" or "jet" of NGC 2936.

Notes by Steve Gottlieb