Hercules Cluster

From Wikipedia, the free encyclopedia
  (Redirected from Abell 2151)
Jump to: navigation, search
This article is about the cluster of galaxies Abell 2151. For the globular cluster of stars, see Messier 13.
Hercules Cluster
VST image of the Hercules galaxy cluster.jpg
Observation data (Epoch J2000)
Constellation(s) Hercules
Right ascension 16h 05m 15.0s[1]
Declination +17° 44′ 55″[1]
Brightest member NGC 6050
Number of galaxies 300[2]
Richness class 2[3]
Bautz-Morgan classification III[3]
Redshift 0.03660 (10 972 km/s)[1]
156 Mpc (509 Mly) h−1
X-ray flux (15.00 ± 12.5%)×1012 erg s−1 cm−2 (0.1—2.4 keV) [1]
Other designations
Abell 2151
See also: Galaxy groups, Galaxy clusters, List of galaxy clusters

The Hercules Cluster (Abell 2151) is a cluster of about 200 galaxies[4] some 500 million light-years distant in the constellation Hercules. It is rich in spiral galaxies and shows many interacting galaxies.[5] The cluster is part of the larger Hercules Supercluster, which is itself part of the much larger Great Wall super-structure.[1]

See also[edit]

External links[edit]


  1. ^ a b c d e "NASA/IPAC Extragalactic Database". Results for Abell 2151. Retrieved 2007-07-19. 
  2. ^ "National Optical Astronomy Observatory". Galaxies. Retrieved 2007-07-19. 
  3. ^ a b 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 March 13, 2012. 
  4. ^ "Two Micron All Sky Survey". 2MASS Galaxy Science & Analysis. Retrieved 2007-08-03. 
  5. ^ "University of Alabama Astronomy". Astronomical Image Galleries. Retrieved 2007-07-19. 

Coordinates: Sky map 16h 05m 15s, +17° 44′ 55″