John Herschel discovered NGC 3347 = h3291, along with NGC 3354, on 1 May 1834 (sweep 446) and recorded, "pF; S; R; vsmbM to a * 12m." He observed this group on four nights.

400/500mm - 17.5" (3/28/87): moderately bright and large, elongated ~N-S, bright nucleus. First of three with NGC 3354 3.4' E and NGC 3358 10' ESE. Member of the Klemola 16 group.

Notes by Steve Gottlieb