Édouard Stephan discovered NGC 5346 = St XII-57 on 18 May 1881. His position is accurate.

400/500mm - 17.5" (6/6/86): very faint, requires averted, slightly elongated. Forms a pair with NGC 5337 9.8' NW. NGC 5326 lies 26' W. Forms the NE vertex of a trapezoid with mag 13 stars 2.4' SSW, 3.6' SW and 2.1' WNW. Member of the NGC 5371 group.

Notes by Steve Gottlieb