Norma Cluster
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 The Norma Cluster as images with the ESO/MPG Wide Field Imager. |
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| Observation data (Epoch J2000) |
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|---|---|
| Constellation(s): | |
| Right ascension: | 16h 15m 32.8s[1] |
| Declination: | -60° 54′ 30″[1] |
| Number of galaxies: | |
| Brightest member: | |
| Other designations | |
| Abell 3627[1] | |
| See also: Galaxy groups and clusters, List of galaxy clusters |
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The Norma Cluster (ACO 3627 or Abell 3627) is a rich cluster of galaxies lying near the center of the Great Attractor[2]. Although it is both nearby and bright, it is located in the zone of avoidance, a region that is difficult to observe 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 in the order of 1015 solar masses[3].
[edit] External links
[edit] References
- ^ a b c NASA/IPAC Extragalactic Database. Results for Norma Cluster. Retrieved on 2006-10-22.
- ^ R. C. Kraan-Korteweg, in Lecture Notes in Physics 556, edited by D. Pageand J.G. Hirsch, p. 301 (Springer, Berlin, 2000).
- ^ H. Boehringer et al., Astrophys. J. 467, 168 (1996)., R. C. Kraan-Korteweg et al., Nature 379, 519 (1996).
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