John Herschel discovered NGC 3358 = h3293 on 2 Feb 1835 and recorded "F; vS; R: close to a vS star; the last of 3 [with NGC 3347 and 3354]."

400/500mm - 17.5" (3/28/87): moderately bright, moderately large, prominent core, fainter elongated halo. Several stars are near. Third of three with NGC 3354 7' WNW and NGC 3350 10' WNW. Member of the Klemola 16 group.

Notes by Steve Gottlieb