NGC 4840 (also MCG 5-31-29 and PGC 44324) is a magnitude +13.7 elliptical galaxy located 280 million light-years away in the constellation Coma Berenices.
The galaxy was discovered by German-British astronomer William Herschel using a 47.5 cm (18.7 inch) f/13 speculum reflector at Datchet, Berkshire, on the 11th April 1785.
Right Ascension 12h 57m 32.8s, Declination +27° 36' 38"
