3C 321 is a system of two galaxies rotating around each other. They are notable for showing the first observed galaxy smiting another galaxy with a blast of energy, which is theorized to be from a supermassive black hole at the center of the former galaxy.
Galaxy system 3C 321. A stream of energy is erupting from the "Death Star Galaxy" at bottom-left, striking its companion galaxy at top-right.
|Right ascension||15h 31m 42.7s|
|Declination||+24° 04′ 25.00″|
|Distance||1.2 billion ly (370 Mpc) |
(Light travel time)
The larger galaxy, dubbed the "Death Star Galaxy" by NASA astronomers, has an energetic jet directed towards its companion. The discovery was announced by NASA on 18 December 2007. Observation of the enormous jet was possible due to the combined efforts of both space and ground-based telescopes.
- Hautaluoma, Grey; Morcone, Jennifer; Watzke, Megan (17 December 2007). "'Death Star' Galaxy Black Hole Fires at Neighboring Galaxy". NASA.
- Phillips, Tony (18 December 2007). "NASA Announces Discovery of Assault by a Black Hole". Science@NASA. NASA.
- Mosher, Dave (17 December 2007). "Galaxy Blasts Neighbor with Deadly Jet". Space.com.
- O'Hanlon, Larry (17 December 2007). "Galaxy Zapping Neighbor With Deathly Beam". Discovery News. Archived from the original on 19 December 2007.