Galaxy NGC 772

History
The galaxy NGC 772 was discovered on November 29, 1785 by the German-British astronomer William Herschel with his 18.7 inch reflector telescope. The small companion galaxy NGC 770 remained undiscovered until November 3, 1855. During that night it was discovered by the Irish astronomer RJ Mitchell using Lord Rosse's large 72 inch reflector telescope. [196, 277]
In Halton Arp's 1966 Atlas of Peculiar Galaxies, the two galaxies are listed as Arp 78, a spiral galaxy with a small companion with high surface brightness. [199]
Physical Properties
The two galaxies interact gravitationally with one another and are about 36 Mpc away. [145, 439]
Finder Chart
The galaxy NGC 772 is located in the constellation Aries. The best time to observe is August to February, when it is highest at night.
