William Herschel discovered NGC 3364 = H III-318 = h746 on 3 Apr 1785 (sweep 390) and noted "vF, pL, r." His position was ~2.5' east of UGC 5890. On 4 Nov 1831 (sweep 482), John Herschel wrote, "eF; L; R; vgbM; 60"; a coarse double star sf [about 5'] points back directly to it."

400/500mm - 17.5" (3/28/92): faint, small, round, low even surface brightness. Collinear with a mag 13/13.5 double star at 29" separation located 4' N.

Notes by Steve Gottlieb