Albert Marth discovered NGC 6713 = m 392 on 3 Aug 1864 and noted "vF, S, R, bM." His position is accurate.
400/500mm - 17.5" (7/5/86): faint, very small, round, even surface brightness, rich star field.
Notes by Steve Gottlieb
Albert Marth discovered NGC 6713 = m 392 on 3 Aug 1864 and noted "vF, S, R, bM." His position is accurate.
400/500mm - 17.5" (7/5/86): faint, very small, round, even surface brightness, rich star field.
Notes by Steve Gottlieb