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Norma Cluster : ウィキペディア英語版 | Norma Cluster
The Norma Cluster (ACO 3627 or Abell 3627) is a rich cluster of galaxies located near the center of the Great Attractor and is about distant.〔(R. C. Kraan-Korteweg, in Lecture Notes in Physics 556, edited by D. Pageand J.G. Hirsch, p. 301 (Springer, Berlin, 2000). )〕〔(【引用サイトリンク】 work=NASA/IPAC Extragalactic Database (NED) )〕 Although it is both nearby and bright, it is difficult to observe because it is located in the Zone of Avoidance, a region near the plane of the Milky Way. Consequently, the cluster is severely obscured by interstellar dust at optical wavelengths. Its mass is estimated to be on the order of 1015 solar masses.〔 ==See also==
*List of galaxy clusters *Coma Cluster *Eridanus Cluster *Fornax Cluster *Virgo Cluster *X-ray astronomy
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