Arp 220
Arp 220 is a unique galaxy located about 250 million light-years away in the constellation Hercules. It is classified as a starburst galaxy, meaning it is experiencing an exceptionally high rate of star formation. This intense activity is primarily due to the merger of two galaxies, which has led to the creation of new stars at an accelerated pace.
The galaxy is notable for its bright infrared emissions, which are a result of the dust and gas being heated by the newly formed stars. Arp 220 is one of the closest examples of a merging galaxy, providing valuable insights into the processes of galaxy evolution and star formation in the universe.