Astronomy:Hercules Cluster
From HandWiki
| Hercules Cluster | |
|---|---|
| File:300px | |
| 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 (co-moving) | 156 Mpc (509 Mly) h−10.705 [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]
See also
- Abell catalogue
- List of Abell clusters
- X-ray Astronomy
- NGC 6040
- NGC 6041
- NGC 6043
- Arp 272
- Galaxy Cluster
- NGC 6045
- NGC 6046
- NGC 6047
- NGC 6039
- NGC 6042
- NGC 6044
External links
- NASA Astronomy Picture of the Day: The Hercules Cluster of Galaxies (July 19, 2007)
- NASA Astronomy Picture of the Day: The Hercules Cluster of Galaxies (July 16, 2009)
- Hercules Cluster — University of Alabama
- The Hercules Cluster on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
References
- ↑ 1.0 1.1 1.2 1.3 1.4 "NASA/IPAC Extragalactic Database". Results for Abell 2151. http://nedwww.ipac.caltech.edu/.
- ↑ "National Optical Astronomy Observatory". Galaxies. http://www.noao.edu/image_gallery/html/im0658.html.
- ↑ 3.0 3.1 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. doi:10.1086/191333. ISSN 0067-0049. Bibcode: 1989ApJS...70....1A. http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?bibcode=1989ApJS...70....1A&page_ind=0&epage_ind=137&type=PRINTER&data_type=PDF_HIGH&email=&emailsize=500&emailsplit=YES&send=GET&verified=YES. Retrieved March 13, 2012.
- ↑ "Two Micron All Sky Survey". 2MASS Galaxy Science & Analysis. http://spider.ipac.caltech.edu/staff/jarrett/2mass/3chan/redshift/gz_cat.html.
- ↑ "University of Alabama Astronomy". Astronomical Image Galleries. http://www.astr.ua.edu/gifimages/hercules.html.
- ↑ "HerculesClustertext". http://www.robgendlerastropics.com/HerculesClustertext.html.
- ↑ "NGC 6041". http://simbad.u-strasbg.fr/simbad/sim-id?Ident=NGC%206041.
Coordinates: 
16h 05m 15s, +17° 44′ 55″
 |  |
