John Herschel discovered NGC 2121 = h2982 on 9 Feb 1836 and described as "vF; vglbM; 3'." His position from one sweep is accurate.

600/800mm - 25" (10/10/15 - OzSky): at 318x; bright, very large, slightly elongated ~N-S, 2.0'x1.6', only a broad weak concentration. Fairly smooth appearance with only a slight granularity. A couple of mag 15.5-16 are resolved around the edges. Mag 9.9 HD 39626 is 6' WSW.

Notes by Steve Gottlieb