* Astronomy

NGC 4017 (also Arp 305, IRAS 11561+2743, MCG 5-28-65, UGC 6967 and PGC 37705) is a magnitude +12.6 face-on spiral galaxy located 159 million light-years away in the constellation Coma Berenices.
The galaxy is gravitationally interacting with the neighbouring galaxy NGC 4016: these two galaxies are listed as Arp 305 in the Atlas of peculiar galaxies by Halton Arp.

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.

The galaxy hosted supernova 2006st and supernova 2007an

Right Ascension 11h 58m 45.7s, Declination +27° 27' 11"