Hercules Cluster
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| Hercules Cluster | |
| Observation data (Epoch J2000) | |
|---|---|
| Constellation(s) | Hercules |
| Right ascension | 16h 05m 15.0s[1] |
| Declination | 17° 44′ 55″[1] |
| Number of galaxies | >100[2] |
| Other designations | |
| Abell 2151 | |
| See also: Galaxy groups and clusters, List of galaxy clusters | |
This article is about the cluster of galaxies Abell 2151. For the globular cluster of stars, see Messier 13.
The Hercules Cluster (Abell 2151) is a cluster of about 100 galaxies some 650 million light-years distant (z = 0.036[3]) in the constellation Hercules. It is rich in spiral galaxies and shows many interacting galaxies.[4] The cluster is part of the larger Hercules supercluster, which is itself part of the much larger Great Wall super-structure.[1]
[edit] External links
- July 19, 2007 — Astronomy Picture of the Day
- Hercules Cluster — University of Alabama
- The Hercules Cluster on the WikiSky: DSS2, SDSS, IRAS, Hidrogen α, X-Ray, Astrophoto, Sky Map
[edit] References
- ^ a b NASA/IPAC Extragalactic Database. Results for Abell 2151. Retrieved on 2007-07-19.
- ^ National Optical Astronomy Observatory. Galaxies. Retrieved on 2007-07-19.
- ^ Two Micron All Sky Survey. 2MASS Galaxy Science & Analysis. Retrieved on 2007-08-03.
- ^ University of Alabama Astronomy. Astronomical Image Galleries. Retrieved on 2007-07-19.
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