Hercules Cluster

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.[6]

This article is about the cluster of galaxies Abell 2151. For the globular cluster of stars, see Messier 13.
Hercules Cluster
Observation data (Epoch J2000)
Constellation(s)Hercules
Right ascension 16h 05m 15.0s[1]
Declination+17° 44′ 55″[1]
Brightest memberNGC 6041
Number of galaxies300[2]
Richness class2[3]
Bautz–Morgan classificationIII[3]
Redshift0.03660 (10 972 km/s)[1]
Distance
(co-moving)		156 Mpc (509 Mly) h−1
0.705 [1]
X-ray flux(15.00 ± 12.5%)×10−12 erg s−1 cm−2 (0.1—2.4 keV) [1]
Other designations
Abell 2151

The cluster's brightest member is the giant elliptical galaxy NGC 6041.[7]

See also

References
  1. "NASA/IPAC Extragalactic Database". Results for Abell 2151. Retrieved 2007-07-19.
  2. "National Optical Astronomy Observatory". Galaxies. Retrieved 2007-07-19.
  3. 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. Archived from the original on 2007-06-30. Retrieved 2007-08-03.
  5. "University of Alabama Astronomy". Astronomical Image Galleries. Retrieved 2007-07-19.
  6. "HerculesClustertext". www.robgendlerastropics.com. Retrieved 24 October 2019.
  7. "NGC 6041". Retrieved 2018-01-23.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.