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Fornax Cluster

Not to be confused with Furneaux Group.
Fornax Cluster
VLT Survey Telescope image of the Fornax Galaxy Cluster[1]
Observation data (Epoch J2000)
Constellation(s)Fornax & Eridanus
Right ascension3h 38m[2]
Declination-35° 27′[2]
Brightest memberNGC 1316
Number of galaxies58[2]
Binding mass7±2 × 1013 M☉
Other designations
NGC 1399 Group, Abell S0373 or AGC 3733,[2] G53, LGG 96
See also: Galaxy group, Galaxy cluster, List of galaxy groups and clusters

The Fornax Cluster is a cluster of galaxies lying at a distance of 19 megaparsecs (62 million light-years).[3] It has an estimated mass of (7±2)×1013 solar masses,[4] making it the second richest galaxy cluster within 100 million light-years, after the considerably larger Virgo Cluster. It may be associated with the nearby Eridanus Group. It lies primarily in the constellation Fornax, with its southern boundaries partially crossing into the constellation of Eridanus, and covers an area of sky about 6° across or about 28 sq degrees.[5]

The Fornax Cluster is a particularly valuable source of information about the evolution of such clusters due to its relatively close proximity to the Sun. It also shows the gravitational effects of a merger of a galaxy subgroup with the main galaxy group,[6] which in turn lends clues about the associated galactic superstructure.[7] At the centre of the cluster lies NGC 1399.[3] Other cluster members include NGC 1316 (the group's brightest galaxy), NGC 1365, NGC 1427A, NGC 1427 and NGC 1404.[3]

  1. ^ "Inside the Fiery Furnace". Retrieved 13 April 2016.
  2. ^ a b c d "NASA/IPAC Extragalactic Database". Results for Fornax Cluster. Retrieved 2006-10-08.
  3. ^ a b c Jordán, A.; Blakeslee, J. P.; Côté, P.; Ferrarese, L.; Infante, L.; Mei, S.; Merritt, D.; Peng, E. W.; et al. (June 2006). "The ACS Fornax Cluster Survey. I. Introduction to the Survey and Data Reduction Procedures". The Astrophysical Journal Supplement Series. 452 (1): 141–153. arXiv:astro-ph/0702320. Bibcode:2007ApJS..169..213J. doi:10.1086/512778. S2CID 17845709.
  4. ^ Drinkwater, Michael J.; Gregg, Michael D.; Colless, Matthew (2001-02-01). "Substructure and Dynamics of the Fornax Cluster". The Astrophysical Journal Letters. 548 (2): L139–L142. arXiv:astro-ph/0012415. Bibcode:2001ApJ...548L.139D. doi:10.1086/319113. ISSN 0004-637X. S2CID 13456590.
  5. ^ Cite error: The named reference Drinkwater2001 was invoked but never defined (see the help page).
  6. ^ "Hubble Heritage Project". Dwarf Irregulars and Galaxy Clusters. Retrieved 2006-12-07.
  7. ^ "Chandra X-Ray Observatory". Fornax Cluster: Motions of Nearby Galaxy Cluster Reveal Presence of Hidden Superstructure. Retrieved 2006-12-07.

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