Albert Marth discovered NGC 6077 = m 304, along with NGC 6076, on 24 Jun 1864 and noted "F, sbM." His position is accurate.

400/500mm - 17.5" (7/15/93): brighter of a pair with NGC 6076 3.5' S. Faint, small, round, broad concentration. Located 2.5' NE of a mag 7.3 star.

600/800mm - 24" (6/14/15): slightly brighter of a pair with NGC 6076 (double system) 3.0' S. At 260x it appeared fairly faint, fairly small, round, 24" diameter, small bright core increases to the center. The pair of galaxies flank mag 7.5 HD 145676 with NGC 6077 2.3' NE of the bright star.

Notes by Steve Gottlieb