Albert Marth discovered NGC 7434 = m 511, along with NGC 7428, on 27 Jul 1864 and noted "vF, vS, R, stellar." His position is 1' too far north.
400/500mm - 17.5" (7/22/87): very faint, extremely small, round, about 10" diameter. Located 17.5' SE of NGC 7428.
Notes by Steve Gottlieb