Lewis Swift discovered NGC 7580 = Sw. V-99 on 25 Sep 1886 and recorded "vF; pS; R; F * nr sp; 3 stars following point to it." His position and description is accurate.
400/500mm - 17.5" (9/23/89): faint, small, slightly elongated SW-NE, bright core.
Notes by Steve Gottlieb