Ring galaxy: Difference between revisions
wikademia>Tarnum mNo edit summary |
Interwiki de |
||
| Line 33: | Line 33: | ||
[[Category:Ring galaxies|*]] | [[Category:Ring galaxies|*]] | ||
[[de:Ringgalaxie]] | |||
[[sk:Prstencová galaxia]] | [[sk:Prstencová galaxia]] | ||
[[sr:Прстенаста галаксија]] | [[sr:Прстенаста галаксија]] | ||
Revision as of 22:49, 28 October 2006
A ring galaxy is a galaxy with a ring-like appearance. The ring consists of massive, relatively young blue stars, which are extremely bright. The central region contains relatively little luminous matter. Astronomers believe that ring galaxies are formed when a smaller galaxy passes through the center of a larger galaxy. Because most of a galaxy consists of empty space, this "collision" rarely results in any actual collisions between stars. However the gravitational disruptions caused by such an event could cause a wave of star formation to move through the larger galaxy.
Hoag's Object, discovered by Art Hoag in 1950 is an example of such a galaxy.
See also
- Active galaxy
- Barred spiral galaxy
- Dwarf galaxy
- Dwarf elliptical galaxy
- Dwarf spheroidal galaxy
- Elliptical galaxy
- Galaxy classification
- Galaxy formation and evolution
- Groups and clusters of galaxies
- Irregular galaxy
- Lenticular galaxy
- List of galaxies
- List of nearest galaxies
- Spiral galaxy
- Starburst galaxy
- Seyfert galaxy
- Timeline of galaxies, clusters of galaxies, and large scale structure
External link
 |
This galaxy-related article is a stub. You can help Wikipedia by expanding it. |
de:Ringgalaxie sk:Prstencová galaxia sr:Прстенаста галаксија