William Herschel discovered NGC 4161 = H II-803 on 17 Apr 1789 (sweep 923) and noted "F, S." His re-reduced position with respect to Delta UMa on 18 Mar 1790 (sweep 951) matches UGC 7191.
400/500mm - 17.5" (5/13/88): fairly faint, fairly small, bright core, elongated SW-NE.
Notes by Steve Gottlieb