Right ascension 16 15 32.8 Richness class 1 Redshift 0.01570 (4 707 km/s) | Declination −60° 54′ 30″ Bautz-Morgan classification I | |
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Constellation(s) Norma, Triangulum Australe | ||
The Norma Cluster (ACO 3627 or Abell 3627) is a rich cluster of galaxies located near the center of the Great Attractor; it is about 68 Mpc (222 Mly) distant. 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.
References
Norma Cluster Wikipedia(Text) CC BY-SA