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.
| Centaurus Cluster | |
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The Centaurus Cluster as seen from Earth with its expected dark matter halo. | |
| Observation data (Epoch J2000) | |
| Constellation(s) | Centaurus |
| Right ascension | 12h 48m 51.8s[1] |
| Declination | −41° 18′ 21″[1] |
| Brightest member | NGC 4696 |
| Number of galaxies | ~100[1] |
| Richness class | 0[2] |
| Bautz–Morgan classification | I-II [2] |
| Redshift | 0.01140 (3 418 km/s)[1] |
| Distance (co-moving) | 52.4 Mpc (170.9 Mly) h−1 0.705 [1] |
| X-ray flux | 15.7×10−11 erg s−1 cm−2 (0.5–2 keV) [1] |
| Other designations | |
| Abell 3526[1] | |
| See also: Galaxy group, Galaxy cluster, List of galaxy groups and clusters | |
The cluster consists of two different sub-groups of galaxies with different velocities.[3] Cen 30 is the main subgroup containing NGC 4696. Cen 45 which is centered on NGC 4709, is moving at 1500 km/s relative to Cen 30,[3] and is believed to be merging with the main cluster.[4]
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| Abell |
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Galaxies | |
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| Morphology |
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| Structure |
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| Active nuclei |
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| Energetic galaxies |
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| Low activity |
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| Interaction |
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| Lists |
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| See also |
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