# Hydra Cluster

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> Source: https://en.wikipedia.org/wiki/Hydra_Cluster
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{{Short description|Galaxy cluster in the constellation Hydra}}
{{hatnote|Not to be confused with the [Hydra–Centaurus Supercluster](/source/Hydra%E2%80%93Centaurus_Supercluster)}}
{{Use dmy dates|date=April 2019}}

{{Infobox galaxy cluster 
| name = Hydra Cluster
| image = Hydra I galaxy cluster.jpg 
| caption = Central region of Abell 1060 (Hydra Cluster) with [legacy surveys](/source/Dark_Energy_Spectroscopic_Instrument). The bright stars are [HD 92036](/source/HD_92036) (middle left) and [HD 91964](/source/HD_91964) (bottom)
| constellation = [Hydra](/source/Hydra_(constellation))
| epoch = [J2000](/source/Epoch_(astronomy))
| ra = {{RA|10|36|42.7100}}<ref name="NED">{{cite web
 | title=Results for object Hydra CLUSTER (Abell 1060)
 | work=NASA/IPAC Extragalactic Database
 | url=https://ned.ipac.caltech.edu/byname?objname=Abell+1060&hconst=67.8&omegam=0.308&omegav=0.692&wmap=4&corr_z=1
 | accessdate=8 March 2026}}</ref>
| dec = {{DEC|-27|31|42.900}}<ref name="NED"/>
| redshift = 0.012389 ± 0.000123<ref name="NED"/>
| distance = {{convert|58.3|Mpc|Mly|1|abbr=on|lk=on}} {{hub|0.705}}
| richness = 1<ref name="ACO">{{cite journal
 | last1 = Abell
 | first1 = George O.
 | authorlink1 = George O. Abell
 | last2 = Corwin
 | first2 = Harold G. Jr.
 | last3 = Olowin
 | first3 = Ronald P.
 |date=May 1989
 | title = A catalog of rich clusters of galaxies
 | journal = Astrophysical Journal Supplement Series
 | volume = 70
 | issue = May 1989
 | pages = 1–138
 | format = PDF
 | issn = 0067-0049
 | bibcode = 1989ApJS...70....1A
 | doi = 10.1086/191333
 | accessdate = 12 March 2012
 | url = http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?bibcode=1989ApJS...70....1A&page_ind=0&epage_ind=137&type=PRINTER&data_type=PDF_HIGH&email=&emailsize=500&emailsplit=YES&send=GET&verified=YES
| doi-access = free
 }}</ref>
| bmtype = III<ref name="ACO"/>
| member_no = 157<ref name="noao">{{cite web
 | title=National Optical Astronomy Observatory
 | work=Galaxies
 | url=http://www.noao.edu/image_gallery/html/im0658.html
 | accessdate=19 July 2007
 | archive-date=15 March 2016
 | archive-url=https://web.archive.org/web/20160315035450/http://noao.edu/image_gallery/html/im0658.html
 | url-status=dead
 }}</ref>
| flux = 6.1{{e|-11}} [erg](/source/erg) s<sup>−1</sup> cm<sup>−2</sup> (0.5–2 [keV](/source/electron_volt))<ref name="NED"/>
| other_names = [Abell](/source/Abell_catalogue) 1060
}}

The '''Hydra Cluster''' (or '''Abell 1060''') is a [galaxy cluster](/source/galaxy_cluster) that contains 157 bright [galaxies](/source/galaxies), appearing in the [constellation](/source/constellation) [Hydra](/source/Hydra_(constellation)).<ref>Wehner and Harris, p.1</ref> The cluster spans about ten million [light-year](/source/light-year)s and has an unusually high proportion of [dark matter](/source/dark_matter).<ref>{{Cite APOD |date=16 April 2001 |title=The Hydra Cluster of Galaxies }}</ref> The cluster is part of the [Hydra–Centaurus Supercluster](/source/Hydra%E2%80%93Centaurus_Supercluster) located 158 million light-years from [Earth](/source/Earth). The cluster's largest galaxies are [elliptical galaxies](/source/elliptical_galaxies) [NGC 3309](/source/NGC_3309) and [NGC 3311](/source/NGC_3311) and the [spiral galaxy](/source/spiral_galaxy) [NGC 3312](/source/NGC_3312) all having a diameter of about 150,000 light-years.<ref>[http://www.atlasoftheuniverse.com/superc/hya.html ''The Hydra Supercluster''] An Atlas of the Universe.com</ref>
In spite of a nearly circular appearance on the sky, there is evidence in the galaxy velocities for a clumpy, three-dimensional distribution.<ref>
{{Cite journal
 | doi = 10.1086/166902
 | last = Fitchett | first = Michael | last2 = Merritt | first2 = David | author2-link = David Merritt | title = Dynamics of the Hydra I Galaxy Cluster
 | journal = The Astrophysical Journal |date=December 1988
 | volume = 335 | pages = 18–34
 | bibcode = 1988ApJ...335...18F| doi-access = free }}</ref>

thumb|left|upright=2|A map of Hydra Cluster
{{clear}}
==References==
{{reflist}}

==Related reading==
* Wehner, Elizabeth M. H. and Harris, William E. (10 August 2006) [https://arxiv.org/abs/0708.1514 ''UCD candidates in the Hydra Cluster'' ]. ArXiv.org. ApL Letters
* {{WikiSky|name=The Hydra Cluster|z=9}}

{{Sky|10|36.9|00|-|27|32|00|508800000}}
{{Catalogs|Abell=1060}}
{{galaxy}}

Category:Hydra Cluster
Category:Galaxy clusters
1060
Category:Abell richness class 1
Category:Hydra-Centaurus Supercluster

{{galaxy-cluster-stub}}

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Adapted from the Wikipedia article [Hydra Cluster](https://en.wikipedia.org/wiki/Hydra_Cluster) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Hydra_Cluster?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.