Édouard Stephan discovered NGC 6126 = St XII-83 on 19 Jun 1880. His micrometric position is very accurate.
400/500mm - 17.5" (6/18/93): faint, fairly small, round, 40" diameter, broadly concentration halo, slightly brighter core. Located 1.6' S of a mag 10.5 star.
Notes by Steve Gottlieb