Heinrich d'Arrest discovered NGC 5092 on 12 Apr 1867 with the 11-inch refractor at Copenhagen. His mean position (measured twice) is just off the southeast side of UGC 8376. He noted the mag 14.5-15 star just off the southern edge, though called it mag 17.

400/500mm - 18" (5/30/03): fairly faint, small, round, 0.6' diameter, weak concentration. A mag 14.5-15 star lies 50" SSE of center.

Notes by Steve Gottlieb