NGC 4903 (also ESO 443-30, IRAS 12586-3039, MCG -5-31-13 and PGC 44894) is a magnitude +12.2 spiral galaxy located 227 million light-years away in the constellation Centaurus.
The galaxy was discovered by British astronomer John Herschel using a 47.5 cm (18.7 inch) f/13 speculum reflector at the Cape of Good Hope on the 30th March 1835.
Right Ascension 13h 01m 22.7s, Declination -30° 56' 06"