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Norma Cluster
Centre of Norma Cluster with Milky Way stars in the foreground. Giant galaxies ESO 137-8 and ESO 137-6 are visible to the left.
Observation data (Epoch J2000)
Constellation(s)	Norma, Triangulum Australe
Right ascension	16 14 22
Declination	−60° 52′ 20″
Richness class	1
Bautz–Morgan classification	I
Redshift	0.01570 (4 707 km/s)</ref>
Distance	67.8 Mpc (221.1 Mly) h 0.705
Binding mass	10 M☉
X-ray flux	10 mCrab
Other designations
Abell 3627, ACO 3627

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 10 solar masses.

ESO 137-001, an example of a jellyfish galaxy, is located in Abell 3627.

Gallery

• ESO 137-001 located in the Norma cluster
• ESO 137-2 located in the Norma cluster

See also

• List of galaxy groups and clusters
• Coma Cluster
• Eridanus Cluster
• Fornax Cluster
• Virgo Cluster
• X-ray astronomy

References

1. ^ H. Boehringer et al., Astrophys. J. 467, 168 (1996)., R. C. Kraan-Korteweg et al., Nature 379, 519 (1996).
2. ^ Abell, George O.; Corwin, Harold G. Jr.; Olowin, Ronald P. (May 1989). "A catalog of rich clusters of galaxies". Astrophysical Journal Supplement Series. 70 (May 1989): 1–138. Bibcode:1989ApJS...70....1A. doi:10.1086/191333. ISSN 0067-0049.
3. ^ "Norma Cluster". NASA/IPAC Extragalactic Database (NED). Retrieved 2012-02-25.
4. R. C. Kraan-Korteweg, in Lecture Notes in Physics 556, edited by D. Pageand J.G. Hirsch, p. 301 (Springer, Berlin, 2000).
5. "Abell 3627". NASA/IPAC Extragalactic Database (NED). Retrieved 2012-02-25.
6. "New Hubble image of spiral galaxy ESO 137-001". www.spacetelescope.org.

External links

• ESO Press Photos 46a-j/99
• The Norma Cluster on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
• Galaxy Cluster Has Two 'Tails' to Tell. NASA Image of the Day, January 22, 2010.
• The clickable Norma Cluster

v t e Constellation of Norma
List of stars in Norma
Stars	Bayer γ γ δ ε ζ η θ ι ι κ λ μ Variable R S T RT RZ IM QU QV QX V378 HD 142415 143183 143361 148156 148937 330075 Other 1E 161348-5055 2M1540 2XMM J160050.7–514245 (Apep) SCR J1546−5534 SGR J1550−5418 XTE J1550–564
Exoplanets HD 142415 b HD 143361 b HD 148156 b HD 330075 b
Star clusters NGC 5925 NGC 5999 NGC 6005 NGC 6031 NGC 6067 NGC 6087 NGC 6115 NGC 6134 NGC 6152 NGC 6167 NGC 6169
Nebulae Mz 1 Mz 3 RCW 103 SDC 335.579-0.292 Shapley 1
Galaxy clusters Norma Cluster
Category

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• Norma Cluster
• Pavo-Indus Supercluster
• Great Attractor
• Abell objects
• Abell richness class 1
• Galaxy cluster stubs