John Herschel discovered NGC 4831 = h3447 on 22 Mar 1836 and logged "F, R, gbM, 25"." His position is accurate.
400/500mm - 18" (4/29/06): fairly faint, fairly small, elongated 2:1 N-S, 0.8'x0.4', weak concentration, very small slightly brighter nucleus. Located 13' NE of mag 7.2 HD 112403.
Notes by Steve Gottlieb