Albert Marth discovered NGC 2723 = m 138 on 3 Mar 1864 with Lassell's 48" and noted "F, S, R." His position is 1.6' NE of UGC 4723.

400/500mm - 17.5" (3/12/94): fairly faint, small, round, 20" diameter, very small bright core, stellar nucleus. A mag 13 star just 0.6' ENE of center is brighter than the core. Also an extremely faint 15th mag star is just off the NW edge 20" from center.

Notes by Steve Gottlieb