John Herschel discovered NGC 2135 = h2990 on 23 Nov 1834 and recorded it on 5 sweeps. His first observation reads "vF, R, glbM, 1'. Among stars." His position is accurate.

600/800mm - 30" (10/15/15 - OzSky): at 303x and 394x; bright, small, roundish, mottled, high surface brightness, 30" diameter. Unresolved (too compact) except for a mag 14.5 star at the west edge. A mag 11 star is 1.9' WSW. NGC 2130 lies 9' NW.

Notes by Steve Gottlieb