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Centaurus Cluster

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 Kelvin.
Observation data (Epoch J2000)
Constellation(s) Centaurus
Right ascension 12h 48m 51.8s
Declination −41° 18′ 21″
Brightest member NGC 4696
Number of galaxies ~100
Richness class 0
Bautz-Morgan classification I-II
Redshift 0.01140 (3 418 km/s)
Distance
(co-moving)
52.4 Mpc (170.9 Mly) h−1
0.705
X-ray flux 15.7×1011erg s−1 cm−2 (0.5—2 keV)
Other designations
Abell 3526
See also: Galaxy groups, Galaxy clusters, List of galaxy clusters

The Centaurus Cluster (A3526) is a cluster of hundreds of galaxies, located approximately 170 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. 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.

Coordinates: Sky map12h 48m 49.3s, −41° 18′ 40″



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