Albert Marth discovered NGC 340 = m 25 on 27 Sep 1864 with Lassell's 48" on Malta and logged "vF, S, E". This is the first in a group of 6 galaxies he discovered that night (NGC 340, 342, 345, 347, 349, 350). His position is accurate.

400/500mm - 17.5" (10/20/90): very faint, small, elongated 2:1 WSW-ENE, bright core. First of six in the NGC 349 group with NGC 342 7' NE.

Notes by Steve Gottlieb