The-Perseus-Cluster-of-Galaxies.opml

The Perseus Cluster of Galaxies
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  Image:
    http://antwrp.gsfc.nasa.gov/apod/image/0512/perseusCluster_crawford_f26.jpg
  Image Credit:
    Ken Crawford (Rancho Del Sol Observatory)
  Explanation:
    Here is one of the largest objects that anyone will ever see on the sky. Each of these fuzzy blobs is a galaxy, together making up the Perseus Cluster, one of the closest clusters of galaxies. The cluster is seen through a foreground of faint stars in our own Milky Way Galaxy. Near the cluster center, roughly 250 million light-years away, is the cluster's dominant galaxy NGC 1275, seen here just left of picture center. A prodigious source of x-rays and radio emission, NGC 1275 accretes matter as gas and galaxies fall into it. The Perseus Cluster of Galaxies is part of the Pisces-Perseus supercluster spanning over 15 degrees and containing over 1,000 galaxies. At the distance of NGC 1275, this view covers about 1.5 million light-years.
  Tags:
    Space Fotos, APoD, Deep Space, NASA, Milky Way, NGC 1275, Rancho Del Sol Observatory, Perseus Cluster