Hydra Cluster
| Hydra Cluster | |
|---|---|
 Central region of Abell 1060 (Hydra Cluster) withlegacy surveys.The bright stars areHD 92036(middle left) andHD 91964(bottom) | |
| Observation data (EpochJ2000) | |
| Constellation(s) | Hydra |
| Right ascension | 09h18.0m[1] |
| Declination | −12° 05′[1] |
| Number of galaxies | 157[2] |
| Richness class | 1[3] |
| Bautz–Morgan classification | III[3] |
| Redshift | 0.0548 (16,452 km/s)[1] |
| Distance | 58.3Mpc(190.1Mly)h−1 0.705 |
| X-rayflux | 6.1×10−11ergs−1cm−2(0.5–2keV)[1] |
| Other designations | |
| Abell1060 | |
TheHydra Cluster(orAbell 1060) is agalaxy clusterthat contains 157 brightgalaxies,appearing in theconstellationHydra.[4]The cluster spans about ten millionlight-yearsand has an unusually high proportion ofdark matter.[5]The cluster is part of theHydra–Centaurus Superclusterlocated 158 million light-years fromEarth.The cluster's largest galaxies areelliptical galaxiesNGC 3309andNGC 3311and thespiral galaxyNGC 3312all 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
[edit]- ^abcd"NASA/IPAC Extragalactic Database".Results for Abell 2151.Retrieved13 June2013.
- ^"National Optical Astronomy Observatory".Galaxies.Archived fromthe originalon 15 March 2016.Retrieved19 July2007.
- ^abAbell, 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.ISSN0067-0049.Retrieved12 March2012.
- ^Wehner and Harris, p.1
- ^Nemiroff, R.; Bonnell, J., eds. (16 April 2001)."The Hydra Cluster of Galaxies".Astronomy Picture of the Day.NASA.
- ^The Hydra SuperclusterAn Atlas of the Universe
- ^ 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
[edit]- Wehner, Elizabeth M. H. and Harris, William E. (10 August 2006)UCD candidates in the Hydra Cluster.ArXiv.org. ApL Letters
- The Hydra Cluster onWikiSky:DSS2,SDSS,GALEX,IRAS,Hydrogen α,X-Ray,Astrophoto,Sky Map,Articles and images
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