Abell 1146

Abell 1146 is a rich galaxy cluster in the constellation Crater. Its richness class is 4, and it is located about 2 billion light-years (630 megaparsecs) away.[4]

Abell 1146
Observation data (Epoch J2000)
Constellation(s)Crater
Right ascension 11h 01m 20.6s[1]
Declination−22° 43′ 08″[1]
Brightest memberPGC 33231[2]
Richness class4[3]
Bautz–Morgan classificationI[3]
Velocity dispersion1020[1]
Redshift0.142[1]
Distance
(co-moving)		2,059.3 ± 144.2 Mly (631.38 ± 44.20 Mpc)[4]
X-ray luminosity6.61×1044[1]
Other designations
2E 2375, RX J1101.3-2243[5]

Its brightest member, PGC 33231, is an elliptical galaxy.[2] It has a redshift of 0.142.[1]

References
  1. Mahdavi, Andisheh; Geller, Margaret J. (2001). "The LX − σ Relation for Galaxies and Clusters of Galaxies". The Astrophysical Journal. 554 (2): L129–L132. arXiv:astro-ph/0105315. Bibcode:2001ApJ...554L.129M. doi:10.1086/321710.
  2. "2MASS J11011452-2243527". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 3 April 2019.
  3. Abell, George O.; Corwin, Harold G., Jr.; Olowin, Ronald P. (1989). "A catalog of rich clusters of galaxies". The Astrophysical Journal Supplement Series. 70: 1. Bibcode:1989ApJS...70....1A. doi:10.1086/191333.
  4. "NED results for object ABELL 1146". NASA/IPAC Extragalactic Database. National Aeronautics and Space Administration / Infrared Processing and Analysis Center. Retrieved 3 April 2019.
  5. "ACO 1146". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 3 April 2019.


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