NGC 4091 (also MCG 4-29-19, UGC 7083 and PGC 38308) is a magnitude +14.5 spiral galaxy located 353 million light-years away in the constellation Coma Berenices.
The galaxy was discovered by Danish-German astronomer Heinrich Louis d'Arrest using a 27.94 cm (11 inch) f/17.5 refractor st the Copenhagen Observatory on the 2nd May 1864.
Right Ascension 12h 05m 40.2s, Declination +20° 33' 23"
