* Astronomy

NGC 147 (also DDO3, Caldwell 17, MCG 8-2-5, UGC 326 and PGC 2004) is a magnitude +12.1 dwarf spheroidal galaxy located 2.53 ±0.11 million light-years away in the constellation Cassiopeia.

The dwarf galaxy was discovered by British astronomer John Herschel using a 47.5 cm (18.7 inch) f/13 speculum reflecting telescope at Windsor Road in Slough, Berkshire, on the 8th September 1829. 

Right Ascension 00h 33m 12.1s, Declination +48° 30' 32"

NGC 147 is a member of the Local group of galaxies and a satellite galaxy of the Andromeda Galaxy (M31). It forms a physical pair with the nearby galaxy NGC 185, another remote satellite of M31
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