John Herschel discovered NGC 4509 = h1318 on 11 Mar 1828 and noted "vF; S; R; lbM." There is nothing at his position but 1.0 min of RA east is UGC 7704 = PGC 41660. His position matches in dec, so this is a reasonable identification, though CGCG does not label this galaxy as NGC 4509.

400/500mm - 17.5" faint, small, slightly elongated SW-NE, almost even surface brightness. Located 4.5' NW of a bright double star STF 1653 = 9.7/9.7 at 8".

Notes by Steve Gottlieb