Abell 2151
| Abell 2151 Hercules Pile |
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| Image taken by the VLT Survey Telescope | |
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Observation dates equinox : J2000.0 , epoch : J2000.0 |
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| Constellation | Hercules |
| Right ascension | 16 h 05 m , 3 |
| declination | + 17 ° 45 ′ |
| Appearance | |
| Number of galaxies | > 100 |
| Brightest member | NGC 6041 |
| Physical data | |
| Affiliation | Hercules super cluster , Great Wall |
| Redshift | approx. 0.036 |
| Radial velocity | approx. 11000 km / s |
| distance | about 500 million light years |
Abell 2151 ( A2151 for short ), also known as the Hercules Cluster , is a galaxy cluster in the constellation of the same name that is about 500 million light years away . A2151 stretches about 1 ° in the sky, is complex in structure, and has no central galaxy. The brightest member is NGC 6041 . The heap contains several interacting systems, including Arp 71 and Arp 272 . A2151 is part of the Hercules supercluster and the Great Wall . The galaxy cluster was first described by Harlow Shapley in 1933.
Members (selection)
- NGC 6041
- Arp 272 (NGC 6050 and IC 1179)
- NGC 6045 (Arp 71)
- NGC 6034
- NGC 6040
- NGC 6042
- NGC 6043
- NGC 6044
- NGC 6047
- NGC 6054
- NGC 6055
- NGC 6056
- NGC 6057
- NGC 6061
literature
- Cedrés et al. (2009): Star-Forming Galaxies in the Hercules Cluster: Hα Imaging of A2151 ; in: The Astronomical Journal 138 (3), pp. 873-888
- Sánchez-Janssen et al. (2005): The V-band luminosity function of galaxies in A2151 ; in: Astronomy and Astrophysics 434 (2), pp. 521-530
- Dario Maccagni, Bianca Garilli & Massimo Tarenghi (1995): The Complex Structure of Abell 2152 (Hercules) ; in: Astronomical Journal 109, p. 465
Web link
- Spektrum.de : [1] Amateur astronomical image of the galaxy cluster Abell 2151
- Spektrum.de: Labeled environmental recording
Individual evidence
- ^ GR Burbidge & EM Burbidge (1959): The Hercules Clusters of Nebulae ; in: Astrophysical Journal 130, p. 629