Centaurus Cluster

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Centaurus Cluster
Centaurus cluster.jpg
Chandra X-ray image showing the inner 6.7 arcminutes of the core of the Centaurus cluster. This image shows the hot intracluster medium, at temperatures of a few tens of million kelvins.
Observation data (Epoch J2000)
Constellation(s) Centaurus
Right ascension 12h 48m 51.8s[1]
Declination -41° 18′ 21″[1]
Number of galaxies ~100[1]
Brightest member NGC 4696
Redshift 3 418 km/s[1]
Other designations
Abell 3526[1]
See also: Galaxy groups and clusters, List of galaxy clusters
NGC 4696: a cosmic question mark. Credit: ESA/Hubble and NASA

The Centaurus Cluster (A3526) is a cluster of hundreds of galaxies, located approximately 155 million light years away in the Centaurus constellation. The brightest member galaxy is the elliptical galaxy NGC 4696 (~11m). The Centaurus cluster shares its supercluster, the Hydra-Centaurus Supercluster, with IC4329 Cluster and Hydra Cluster.

The cluster consists of two different sub-groups of galaxies with different velocities.[2] Cen 30 is the main subgroup containing NGC 4696. Cen 45 is moving at 1500 km/s relative to Cen 30, and is believed to be merging with the main cluster.

[edit] External links

[edit] References

  1. ^ a b c d e "NASA/IPAC Extragalactic Database". Results for Centaurus Cluster. http://nedwww.ipac.caltech.edu/. Retrieved 2006-10-19. 
  2. ^ Lucey J.R., Currie M.J., Dickens R.J., 1986, MNRAS, 221, 453, http://adsabs.harvard.edu/abs/1986MNRAS.221..453L


Coordinates: Sky map 12h 48m 49.3s, −41° 18′ 40″


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