Not to be confused with the Hydra–Centaurus Supercluster
Hydra Cluster
ConstellationHydra
EpochJ2000
Ra[1]
Dec[1]
Redshift0.012389 ± 0.000123[1]
Distance58.3 Mpc
Richness1[2]
BmtypeIII[2]
Member no157[3]
Flux6.1×10-11 erg s−1 cm−2 (0.5–2 keV)[1]
Other namesAbell 1060

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. ^ "Results for object Hydra CLUSTER (Abell 1060)". NASA/IPAC Extragalactic Database. Retrieved 8 March 2026.
  2. ^ 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.
  3. ^ "National Optical Astronomy Observatory". Galaxies. Archived from the original on 15 March 2016. Retrieved 19 July 2007.
  4. ^ Wehner and Harris, p.1
  5. ^ "The Hydra Cluster of Galaxies". 16 April 2001.
  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