| Hercules Cluster | |
|---|---|
 | |
| Observation data (Epoch J2000) | |
| Constellation(s) | Hercules |
| Right ascension | 16h 05m 15.0s[1] |
| Declination | +17° 44′ 55″[1] |
| Brightest member | NGC 6041 |
| Number of galaxies | 300[2] |
| Richness class | 2[3] |
| Bautz–Morgan classification | III[3] |
| Redshift | 0.03660 (10 972 km/s)[1] |
| Distance | 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 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]
The cluster's brightest member is the giant elliptical galaxy NGC 6041.[7]
- ^ a b c d e "NASA/IPAC Extragalactic Database". Results for Abell 2151. Retrieved 2007-07-19.
- ^ "National Optical Astronomy Observatory". Galaxies. Retrieved 2007-07-19.
- ^ 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.
- ^ "Two Micron All Sky Survey". 2MASS Galaxy Science & Analysis. Archived from the original on 2007-06-30. Retrieved 2007-08-03.
- ^ "University of Alabama Astronomy". Astronomical Image Galleries. Retrieved 2007-07-19.
- ^ "HerculesClustertext". www.robgendlerastropics.com. Retrieved 24 October 2019.
- ^ "NGC 6041". Retrieved 2018-01-23.