Albert Marth discovered NGC 6628 = m 379 on 6 Jun 1864 and noted "vF, S, lE, bM." His position is accurate.

400/500mm - 17.5" (7/1/89): faint, very small, slightly elongated, small bright core, faint stellar nucleus. Located 3.0' WNW of mag 8.7 SAO 85980.

17.5" (7/16/88): fairly faint, very small, round, small bright core, faint stellar nucleus.

Notes by Steve Gottlieb