ARP 273

ARP 273 is a pair of interacting galaxies located 300 million light-years from Earth in the constellation Andromeda. The interactions between the galaxies seem to have triggered a surge of new star births along the outer spiral arms.

The distorted shape of the larger galaxy shows signs of tidal interactions with the smaller galaxy, indicating that the smaller galaxy has passed through the larger one.

Constellation Andromeda

Distance about 300 million light-years from Earth