Article · Wikipedia archive · Last revised Jun 25, 2026

Hercules Cluster

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

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Jun 25, 2026
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Hercules Cluster
Observation data (Epoch J2000)
ConstellationHercules
Right ascension16h 05m 15.0s1
Declination+17° 44′ 55″1
Brightest memberNGC 6041
Number of galaxies3002
Richness class23
Bautz–Morgan classificationIII3
Redshift0.03660 (10 972 km/s)1
Distance156 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 Hercules Cluster (Abell 2151) is a cluster of about 200 galaxies4 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

The cluster's brightest member is the giant elliptical galaxy NGC 6041.7

See also

See also

External links
References

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.