NGC 772

NGC 772 (no. 72 in Arp’s catalogue of peculiar galaxies) is a spiral galaxy (Type Sb) located in the constellation Aries. At a distance of some 130 million lightyears from earth it has an actual diameter of about 100,000 lightyears and is thus about as large as our milky way. The remarkable disturbed shape is caused by its interaction with its neighbor NGC 770.