Édouard Stephan discovered NGC 6665 = St II-21 on 19 Jul 1871. His micrometric position is very accurate. The CGCG fails to label this galaxy NGC 6665, although the identification is certain.

300/350mm - 13.1" (9/3/86): faint, fairly small, very diffuse, very weakly concentrated core. Located 24' ENE of mag 5.5 SAO 67090.

Notes by Steve Gottlieb