William Herschel discovered NGC 3811 = H II-737 = h942 on 9 Mar 1788 (sweep 816) and noted "pF, S, lbM, iR." CH's reduction is 8 sec of RA east of UGC 6650. JH's mean position from two observations is 1' too far north.

400/500mm - 18" (5/31/03): fairly faint, moderately large, oval elongated nearly 3:2 N-S, 1.5'x1.1', broadly concentrated.

Notes by Steve Gottlieb