Albert Marth discovered NGC 7501 = m 527, along with NGC 7499 and 7503, on 2 Sep 1864 and simply noted "eF". His dec is 1' too large.
400/500mm - 17.5" (8/1/87): very faint, very small, round, very small brighter core. NGC 7501 is the faintest in a trio with NGC 7499 2.1' WSW and NGC 7503 3.2' ESE. Located in the core of the Pegasus II galaxy cluster.
Notes by Steve Gottlieb