William Herschel discovered NGC 4627 = H II-659 = h1391 on 20 Mar 1787 (sweep 722) and logged "F, S, R, just np the large following one [NGC 4631]." JH's position is accurate.
300/350mm - 13.1" (5/26/84): faint, small, slightly elongated SSW-NNE. Located 2.6' NW of the center of the remarkable galaxy NGC 4631 and is completely overshadowed by its beauty.
Notes by Steve Gottlieb