William Herschel discovered NGC 4673 = H III-329 = h1424, along with NGC 4670, on 6 Apr 1785 (sweep 393) and noted "vF, S. Goes in the field with the former NGC 4670]." JH made three observations, although his positions were not very accurate.

400/500mm - 17.5" (3/20/93): faint, small, round, bright core, faint stellar nucleus. Located 4.1' S of mag 8.9 SAO 82478 which forms the vertex of an isosceles right triangle with NGC 4673 and NGC 4670 5.6' NW.

Notes by Steve Gottlieb