Hydra Cluster
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| Hydra Cluster | |
|---|---|
| 250px | |
| Observation data (Epoch J2000) | |
| Constellation(s) | Hydra |
| Right ascension | 09h 18.0m[1] |
| Declination | −12° 05′[1] |
| Number of galaxies | 157[2] |
| Richness class | 1[3] |
| Bautz-Morgan classification | III[3] |
| Redshift | 0.0548 (16452 km/s)[1] |
| Distance (co-moving) |
222 Mpc (724.1 Mly) h−1 0.705 |
| X-ray flux | 6.1×10−11 erg s−1 cm−2 (0.5—2 keV)[1] |
| Other designations | |
| Abell 1060 | |
| See also: Galaxy groups, Galaxy clusters, List of galaxy clusters | |
The Hydra Cluster (or Abell 1060) is a galaxy cluster that contains 157 bright galaxies and can be viewed from earth in the constellation Hydra.[4] The cluster spans about ten million light years and has an unusually high proportion of dark matter.[5] The cluster is part of the Hydra-Centaurus Supercluster located 158 million light years from earth. The cluster's largest galaxies are elliptical galaxies NGC 3309 and NGC 3311 and the spiral galaxy NGC 3312 all having a diameter of about 150,000 light years.[6] In spite of a nearly circular appearance on the sky, there is evidence in the galaxy velocities for a clumpy, three-dimensional distribution.[7]
References
- ↑ 1.0 1.1 1.2 1.3 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Wehner and Harris, p.1
- ↑ The Hydra Cluster of Galaxies Astronomy Picture of the Day
- ↑ The Hydra Supercluster An Atlas of the Universe.com
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
Related reading
- Wehner, Elizabeth M. H. and Harris, William E. (10 August 2006) UCD candidates in the Hydra Cluster . ArXiv.org. ApL Letters
- The Hydra Cluster on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
Coordinates: 
10h 36.9m 00s, −27° 32′ 00″
| Morphology | |
|---|---|
| Structure | |
| Active nuclei | |
| Energetic galaxies | |
| Low activity | |
| Interaction | |
| Lists | |
| See also | |
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