John Herschel discovered NGC 7400 = h3957 on 6 Sep 1834 and recorded "pF; lE; glbM. Query if it has not a vS * involved." His Cape position is very accurate, though an error was made and the position in the GC (copied into the NGC) is 30 seconds of time too small.

600/800mm - 30" (10/15/15 - OzSky): at 303x; fairly bright, fairly large, very elongated 7:2 N-S, 1.5'x0.4', broad weak concentration.

Notes by Steve Gottlieb