William Herschel discovered NGC 3937 = H III-389 = h1003 on 27 Apr 1785 (sweep 403) and noted "vF, vS." JH made a single observation and measured an accurate position.
The RNGC equates NGC 3937 with IC 2968, but IC 2968 is a separate galaxy located 3' west (see that number).
400/500mm - 17.5" (4/7/89): moderately bright, very small, slightly elongated, small very bright core. Brightest in the NGC 3937 group with NGC 3943 9.8' SSE and IC 2968 2.8' WSW.
Notes by Steve Gottlieb