William Herschel discovered NGC 5163 = H III-821 on 26 Apr 1789 (sweep 929) and noted "cF, stellar neb." CH's reduced position is 21 sec of RA east and 2' north of UGC 8453. Not seen by Bigourdan.

400/500mm - 18" (6/21/03): fairly faint, fairly small, elongated 3:2 ~N-S, 0.8'x0.5'. Sharply concentrated with a bright 10" core. Located 10' W of mag 6.3 SAO 28763 at the edge of the field and 2 degrees SSE of Mizar! NGC 5201 lies 29' NE.

Notes by Steve Gottlieb