NGC 2558 (also MCG 4-20-22, UGC 4331, NPM1G +20.0168 and PGC 23337) is a magnitude +13.2 spiral galaxy located 230 million light-years away in the constellation Cancer.
The galaxy was discovered by German-British astronomer William Herschel using a 47.5 cm (18.7 inch) f/13 speculum reflector at Windsor Road, Slough, on the 13th February 1787.
Right Ascension 08h 19m 12.7s, Declination +20° 30' 41"
