Forms a close pair with a faint edge-on (NGC 5193A) at the west edge [57" between centers]. The companion was extremely faint, very small, elongated, ~0.4'x0.2', required averted to momentarily glimpse. NGC 5193 and 5193A are members of LGG 353 in the foreground of AGC 3560.

John Herschel discovered NGC 5193 = h3516 on 3 Jun 1836 and recorded "pB; S; R: first g, then psbM; 45"." His position is accurate. Joseph Turner observed this galaxy on 1 May 1878 with the 48" Melbourne Telescope and missed the companion (NGC 5193A) just off the southwest edge.

400/500mm - 17.5" (6/2/00): moderately bright and large, round, 1.2' diameter, fairly sharply concentrated with a small bright core. A mag 12.5 star lies 1.2' N of center. Located 4.6' W of mag 8.2 SAO 204565.

Notes by Steve Gottlieb