John Herschel discovered NGC 5190 = h1621 on 23 Mar 1827 and recorded "vF; S; bM; has a considerable triple star following, dist = 8'."

400/500mm - 17.5" (5/30/92): faint, small, slightly elongated 4:3 SW-NE, 0.8'x0.6'. A mag 15 star is at the NE edge 28" from center and a 12th magnitude star lies 1.7' SSW. An easy but striking triple star located 7' E consists of two mag 10 stars at 27" separation N-S and a mag 13 companion 27" E of the northern component.

Notes by Steve Gottlieb