William Herschel discovered NGC 4890 = H III-614 = h1506 on 11 Mar 1787 (sweep 709) and noted "cF, S, irr R." His position is less than 2' south of MCG -01-33-067 = PGC 44793. JH made a single observation accurate to less than 1'.
400/500mm - 17.5" (4/4/92): fairly faint, fairly small, round, fairly high almost even surface brightness, weak concentration. Forms a vertex of an isosceles triangle with two mag 12.5 stars 2.7' NW and 2.5' SW. NGC 4915 lies 12' ENE.
Notes by Steve Gottlieb