Lewis Swift discovered NGC 4641 = Sw. VI-48, along with NGC 4640, on 17 Apr 1887 and recorded "eF; pL; R; F * nr f; sf of 2 [with NGC 4640]." His position is 5 sec of RA west of UGC 7889 and the star he mentions is 1' southeast.

The RNGC declination is exactly 1 degree too far south. Furthermore, this error is repeated in NGC 2000.0 and the galaxy is misplotted on the first edition of Uranometria 2000 Sky Atlas. UGC, MCG, CGCG and RC3 all give the correct declination. Listed in my RNGC Corrections list #2.

400/500mm - 17.5" (4/13/02): very faint, small, slightly elongated N-S, low surface brightness, 0.6'x0.45'. Located 1' NW of a mag 12.5 star. The declination in the RNGC is one degree too far south.

Notes by Steve Gottlieb