John Herschel discovered NGC 4006 = h1037 on 15 Apr 1828 and noted "F; S; R; bM; sp a * 11m." His position and description matches UGC 6951. Harold Corwin notes that IC 2983 is not NGC 4006. See his notes on that number.

400/500mm - 17.5" (5/11/02): fairly faint, small, slightly elongated SSW-NNE, 0.7'x0.5', very small brighter core, faint stellar nucleus with direct vision. Near the middle of a 13' N-S string of stars concave outwards towards the east. A mag 12 star lies 1.6' NE. Forms a pair with CGCG 013-020 7' ESE. This galaxy appeared faint, small, slightly elongated, 0.5'x0.4'.

Notes by Steve Gottlieb