View source for Norma Cluster

{{Short description|Galaxy cluster in the constellation Norma}}
{{Infobox galaxy cluster
| name = Norma Cluster
| image = File:Norma Cluster DECaPS DR2.jpg
| caption = 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.
| credit =
| epoch = [[Epoch (astronomy)#Julian years and J2000|J2000]]
| ra = {{RA|16|14|22}}<ref name="Nature-Boehringer">[http://adsabs.harvard.edu/cgi-bin/bib_query?1996ApJ...467..168B H. Boehringer ''et al.'', ''Astrophys. J.'' '''467''', 168 (1996).], [http://www.nature.com/nature/journal/v379/n6565/abs/379519a0.html R. C. Kraan-Korteweg ''et al.'', ''Nature'' '''379''', 519 (1996).]</ref>
| dec = {{DEC|-60|52|20}}<ref name="Nature-Boehringer" />
| constellation = [[Norma (constellation)|Norma]], [[Triangulum Australe]]
| member_no = 
| brightest_member = 
| richness = 1<ref name="ACO">{{cite journal
 | last1 = Abell
 | first1 = George O.
 | author-link1 = George O. Abell
 | last2 = Corwin
 | first2 = Harold G. Jr.
 | author-link2 = Harold G. Corwin
 | last3 = Olowin
 | first3 = Ronald P.
 | author-link3 = Ronald P. Olowin
 |date=May 1989
 | title = A catalog of rich clusters of galaxies
 | journal = Astrophysical Journal Supplement Series
 | volume = 70
 | issue = May 1989
 | pages = 1–138
 | issn = 0067-0049
 | bibcode = 1989ApJS...70....1A
 | doi = 10.1086/191333
 | doi-access = free
 }}</ref>
| bmtype = I <ref name="ACO" />
| redshift = 0.01570 (4 707 km/s)<ref name="NED">{{cite web
| title=Norma Cluster
| work=[[NASA/IPAC Extragalactic Database]] (NED)
| url=http://ned.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=Norma+Cluster
| access-date=2012-02-25}}</ref>
| distance = {{convert|67.8|Mpc|Mly|1|abbr=on|lk=on}} {{hub|0.705}} <ref name="NED" />
| temperature = 
| mass = 10<sup>15</sup><ref name="Nature-Boehringer" />
| flux = 10 m[[Crab (unit)|Crab]]<ref name="Nature-Boehringer" />
| other_names = [[Abell catalogue|Abell]] 3627, ACO 3627<ref name="NED" />
}}

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 {{convert|68|Mpc|Mly|0|abbr=on|lk=on}} distant.<ref>[https://arxiv.org/abs/astro-ph/0006199 R. C. Kraan-Korteweg, in Lecture Notes in Physics 556, edited by D. Pageand J.G. Hirsch, p. 301 (Springer, Berlin, 2000).]</ref><ref name="NED-Abell3627">{{cite web
| title=Abell 3627
| work=[[NASA/IPAC Extragalactic Database]] (NED)
| url=http://ned.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=ABELL+3627&extend=no
| access-date=2012-02-25}}</ref> 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 [[Galactic plane|plane]] of the [[Milky Way]]. Consequently, the cluster is severely [[Extinction (astronomy)|obscured]] by [[interstellar dust]] at optical wavelengths. Its mass is estimated to be on the order of 10<sup>15</sup> [[solar mass]]es.<ref name="Nature-Boehringer" />

[[ESO 137-001]], an example of a [[jellyfish galaxy]], is located in Abell 3627.<ref>{{cite web |title=New Hubble image of spiral galaxy ESO 137-001 |url=https://www.spacetelescope.org/images/heic1404a/ |website=www.spacetelescope.org |language=en}}</ref>

== Gallery ==
<gallery>
File:New Hubble image of spiral galaxy ESO 137-001.jpg|ESO 137-001 located in the Norma cluster
File:A busy patch of the Great Attractor (8386658810).jpg|alt=|[[ESO 137-2]] located in the Norma cluster
</gallery>

==See also==
* [[List of galaxy groups and clusters]]
* [[Coma Cluster]]
* [[Eridanus Cluster]]
* [[Fornax Cluster]]
* [[Virgo Cluster]]
* [[X-ray astronomy]]

==References==
{{Reflist}}

==External links==
* [https://web.archive.org/web/20060922154211/http://www.eso.org/outreach/press-rel/pr-1999/phot-46-99.html ESO Press Photos 46a-j/99]
* {{WikiSky|name=The Norma Cluster|z=9}}
* [http://www.nasa.gov/multimedia/imagegallery/image_feature_1570.html Galaxy Cluster Has Two 'Tails' to Tell]. [[NASA]] Image of the Day, January 22, 2010.
* [http://astrojan.nhely.hu/gtract.htm The clickable Norma Cluster]

{{Sky|16|14|22|-|60|52|20|221100000}}
{{Catalogs|Abell=3627}}
{{Norma (constellation)}}
{{galaxy}}

{{DEFAULTSORT:Norma Cluster}}
[[Category:Norma Cluster| ]]
[[Category:Pavo-Indus Supercluster]]
[[Category:Great Attractor]]
[[Category:Abell objects|3627]]
[[Category:Abell richness class 1]]


{{galaxy-cluster-stub}}