Image by Ken Crawford
|NGC 2685, Arp 336|
|See also: Galaxy, List of galaxies|
NGC 2685 (also known as the Helix Galaxy) is a lenticular and polar-ring galaxy in the constellation Ursa Major. It is about 50,000 light-years across and about 42 million light-years away from Earth. It is receding from Earth at 883 kilometers per second. It is an object of great scientific interest, because polar-ring galaxies are very rare galaxies. They are thought to form when two galaxies gravitationally interact with each other.
Snapshot from the Hubble Legacy Archive
- "NASA/IPAC Extragalactic Database - NED". ned.ipac.caltech.edu. Retrieved 2014-02-19.
- "NGC 2685, a polar ring galaxy in Ursa Major | Anne's Astronomy News". annesastronomynews.com. Retrieved 2014-02-19.
|This galaxy-related article is a stub. You can help Wikipedia by expanding it.|