William Herschel discovered NGC 4002 = H III-344 = h1034, along with NGC 4003, on 10 Apr 1785 (sweep 394) and recorded "Two, both eF and vS. 240x verified them, 5 or 6' from each other." JH measured a fairly accurate position.

400/500mm - 17.5" (2/20/88): fairly faint, small, elongated ~E-W, small bright core. A mag 13.5 star is 0.8' SE of center. Forms a pair with NGC 4003 4.6' S. Located very close to Coma Berenices border.

Notes by Steve Gottlieb