NGC 648 (also IC 146, ESO 543-6, MCG -3-5-11 and PGC 6083) is a magnitude +14.4 lenticular galaxy located 487 million light-years away in the constellation of Cetus.
The galaxy was discovered by American astronomer Francis Preserved Leavenworth using a 66.04 cm (26 inch) Alvan Clark & Sons refracting telescope at the Leander McCormick Observatory at the University of Virginia in Charlottesville, Virginia in 1885-6.
The galaxy was rediscovered by Stephane Javelle on the 30th September 1892 and relisted as IC 146.
Right Ascension 01h 38m 39.8s, Declination -17° 49' 52"