|Observation data (J2000 epoch)|
|Right ascension||10h 00m 29.06s|
|Declination||+02° 05′ 31.33″|
|Helio radial velocity||89302 km/s|
|Apparent magnitude (V)||?|
|Number of stars||?|
|Apparent size (V)||?|
|CXOC J100043.1+020637 2XMM J100043.1+020637|
CID-42 is thought to be the result of a galaxy collision between two smaller galaxies. It has a distinctive trail of stars extending many light years.
The discovery of a potential black hole was made after combining through the data and images taken by several telescopes including NASA's Chandra X-ray Observatory, the Hubble Telescope, the Canada-France-Hawaii Telescope and from the ground-based Magellan and Very Large Telescopes in Chile.
When the two galaxies collided the black holes in their centers collided, forming a single supermassive black hole. The black hole then recoiled from the gravitational waves produced by the merger and is being ejected out of the galaxy at several million miles per hour (~2000 km s−1).