Hydra Cluster




Not to be confused with Abell 732 (CL0855+0321)

Not to be confused with Hydra-Centaurus Supercluster.














































Hydra Cluster

Hyamap.gif
A map of Hydra cluster

Observation data (Epoch J2000)
Constellation(s) Hydra
Right ascension 09h 18.0m[1]
Declination −12° 05′[1]
Number of galaxies 157[2]
Richness class 1[3]
Bautz-Morgan classification III[3]
Redshift 0.0548 (16452 km/s)[1]
Distance
(co-moving)		 58.3 Mpc (190.1 Mly) h−1
0.705
X-ray flux 6.1×10−11erg s−1 cm−2 (0.5—2 keV)[1]
Other designations

Abell 1060
See also: Galaxy groups, Galaxy clusters, List of galaxy clusters

The Hydra Cluster (or Abell 1060) is a galaxy cluster that contains 157 bright galaxies, appearing in the constellation Hydra.[4] The cluster spans about ten million light years and has an unusually high proportion of dark matter.[5] The cluster is part of the Hydra-Centaurus Supercluster located 158 million light years from earth. The cluster's largest galaxies are elliptical galaxies NGC 3309 and NGC 3311 and the spiral galaxy NGC 3312 all having a diameter of about 150,000 light years.[6]
In spite of a nearly circular appearance on the sky, there is evidence in the galaxy velocities for a clumpy, three-dimensional distribution.[7]



References





  1. ^ abcd "NASA/IPAC Extragalactic Database". Results for Abell 2151. Retrieved 13 June 2013..mw-parser-output cite.citation{font-style:inherit}.mw-parser-output q{quotes:"""""""'""'"}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-limited a,.mw-parser-output .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}


  2. ^ "National Optical Astronomy Observatory". Galaxies. Retrieved 19 July 2007.


  3. ^ ab Abell, George O.; Corwin, Harold G., Jr.; Olowin, Ronald P. (May 1989). "A catalog of rich clusters of galaxies" (PDF). Astrophysical Journal Supplement Series. 70 (May 1989): 1–138. Bibcode:1989ApJS...70....1A. doi:10.1086/191333. ISSN 0067-0049. Retrieved 12 March 2012.


  4. ^ Wehner and Harris, p.1


  5. ^ Nemiroff, R.; Bonnell, J., eds. (16 April 2001). "The Hydra Cluster of Galaxies". Astronomy Picture of the Day. NASA.


  6. ^ The Hydra Supercluster An Atlas of the Universe.com


  7. ^
    Fitchett, Michael; Merritt, David (December 1988). "Dynamics of the Hydra I Galaxy Cluster". The Astrophysical Journal. 335: 18–34. Bibcode:1988ApJ...335...18F. doi:10.1086/166902.




Related reading



  • Wehner, Elizabeth M. H. and Harris, William E. (10 August 2006) UCD candidates in the Hydra Cluster . ArXiv.org. ApL Letters



  • The Hydra Cluster on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images


Coordinates: Sky map10h 36.9m 00s, −27° 32′ 00″










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