John Herschel discovered NGC 3137 = h3230 on 5 Feb 1837 NGC 3137 and recorded "vF; lE; 25"." His position is 16 sec of RA west of ESO 435-047.

400/500mm - 18" (3/5/05): faint, large, elongated at least 5:2 N-S, 3.0'x1.2', fairly low surface brightness. Broad, weak concentration in poor seeing. A mag 12 star is on the west side (0.3' from the geometric center). Located 7' SE of mag 9.4 SAO 178462. Member of the NGC 3175 group (LGG 189).

Notes by Steve Gottlieb