Celestial hemisphere:  Southern  ·  Constellation: Hydra (Hya)  ·  Contains:  IC 629  ·  NGC 3307  ·  NGC 3308  ·  NGC 3309  ·  NGC 3311  ·  NGC 3312  ·  NGC 3314  ·  NGC 3316  ·  NGC 3317
Hydra Galaxy Cluster, Darius Kopriva
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Hydra Galaxy Cluster

Hydra Galaxy Cluster, Darius Kopriva
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Hydra Galaxy Cluster

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Description

The Hydra Cluster (or Abell 1060) is a galaxy cluster that contains 157 bright galaxies, appearing in the constellation Hydra. The cluster spans about ten million light-years and has an unusually high proportion of dark matter. 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. In spite of a nearly circular appearance on the sky, there is evidence in the galaxy velocities for a clumpy, three-dimensional distribution.

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Hydra Galaxy Cluster, Darius Kopriva