Albert Marth discovered NGC 7478 = m 519, along with NGC 7480, on 11 Aug 1864 and noted "eF, E." His position is 1.2' too far northwest. This galaxy is mentioned in UGC notes to NGC 7480 but is not identified as NGC 7478.

300/350mm - 13" not found.

400/500mm - 17.5" (11/18/95): very faint, very small, round, 15" diameter, slightly brighter core. Located 1.0' SE of a mag 11.5 star and fainter of a pair with NGC 7480 4.6' ESE. Not listed in CGCG, MCG or RC3.

Notes by Steve Gottlieb