John Herschel discovered NGC 4812 = h3442, along with NGC 4811, on 8 Jun 1834 and recorded "eF; R; gbM; 30"; 90" dist from the foregoing NGC 4811] pos = 170.9°." MCG doesn't label MCG -07-27-018 as NGC 4812.

300/350mm - 14" (4/2/16 - Coonabarabran, 160x): slightly fainter of a close pair with NGC 4811 1' N. Fairly faint to moderately bright, fairly small, elongated 2:1 SW-NE, 0.6'x0.3', sharply concentrated with a small bright core and stellar nucleus. Located 6' N of mag 8.2 HD 112404 in a fairly rich star field.

Notes by Steve Gottlieb