Astronomy:NGC 5466
From HandWiki
Short description: Class XII globular cluster in the constellation Boötes
| NGC 5466 | |
|---|---|
 NGC 5466 by Hubble Space Telescope; 3.5′ view | |
| Observation data (J2000 epoch) | |
| Class | XII[1] |
| Constellation | Boötes |
| Right ascension | 14h 05m 27.29s[2] |
| Declination | +28° 32′ 04.0″[2] |
| Distance | 51.9 kly (15.9 kpc)[3] |
| Apparent magnitude (V) | 10.5 |
| Apparent dimensions (V) | 11 |
| Physical characteristics | |
| Mass | 1.79×105[4] M☉ |
| VHB | 16.47 |
| Metallicity | [math]\displaystyle{ \begin{smallmatrix}\left[\ce{Fe}/\ce{H}\right]\end{smallmatrix} }[/math] = –2.20[5] dex |
| Estimated age | 13.57 Gyr[5] |
| Other designations | C 1403+287, GCl 27, GC 3776, h 1746, H 6. |
NGC 5466 is a class XII globular cluster in the constellation Boötes. Located 51,800 light years from Earth and 52,800 light years from the Galactic Center, it was discovered by William Herschel on May 17, 1784, as H VI.9. This globular cluster is unusual insofar as it contains a certain blue horizontal branch of stars, as well as being unusually metal poor like ordinary globular clusters. It is thought to be the source of a stellar stream discovered in 2006, called the 45 Degree Tidal Stream. This star stream is an approximately 1.4° wide star lane extending from Boötes to Ursa Major.
See also
References
- ↑ Shapley, Harlow; Sawyer, Helen B. (August 1927), "A Classification of Globular Clusters", Harvard College Observatory Bulletin 849 (849): 11–14, Bibcode: 1927BHarO.849...11S.
- ↑ 2.0 2.1 Goldsbury, Ryan et al. (December 2010), "The ACS Survey of Galactic Globular Clusters. X. New Determinations of Centers for 65 Clusters", The Astronomical Journal 140 (6): 1830–1837, doi:10.1088/0004-6256/140/6/1830, Bibcode: 2010AJ....140.1830G.
- ↑ Paust, Nathaniel E. Q. et al. (February 2010), "The ACS Survey of Galactic Globular Clusters. VIII. Effects of Environment on Globular Cluster Global Mass Functions", The Astronomical Journal 139 (2): 476–491, doi:10.1088/0004-6256/139/2/476, Bibcode: 2010AJ....139..476P.
- ↑ Boyles, J. et al. (November 2011), "Young Radio Pulsars in Galactic Globular Clusters", The Astrophysical Journal 742 (1): 51, doi:10.1088/0004-637X/742/1/51, Bibcode: 2011ApJ...742...51B.
- ↑ 5.0 5.1 Forbes, Duncan A.; Bridges, Terry (May 2010), "Accreted versus in situ Milky Way globular clusters", Monthly Notices of the Royal Astronomical Society 404 (3): 1203–1214, doi:10.1111/j.1365-2966.2010.16373.x, Bibcode: 2010MNRAS.404.1203F.
Further reading
- BELOKUROV V.; EVANS N.W.; IRWIN M.J.; HEWETT P.C. et al. (2006). "The discovery of tidal tails around the globular cluster NGC 5466". The Astrophysical Journal 637 (1): L29–L32. doi:10.1086/500362. Bibcode: 2006ApJ...637L..29B.
- FERRO A.A.; LOPEZ V.R.; GIRIDHAR S.; BRAMICH D.M. (2008). "CCD photometry of the globular cluster NGC 5466. RR Lyrae light-curve decomposition and the distance scale". Mon. Not. R. Astron. Soc. 384 (4): 1444–1458. doi:10.1111/j.1365-2966.2007.12760.x. Bibcode: 2008MNRAS.384.1444A.
- McCARTHY J.K.; NEMEC J.M. (1997). "The chemical composition and period change rate of the anomalous cepheid V19 in NGC 5466". The Astrophysical Journal 482 (1): 203–229. doi:10.1086/304118. Bibcode: 1997ApJ...482..203M.
- CORWIN T.M.; CARNEY B.W.; NIFONG B.G. (1999). "BV photometry of RR Lyrae variables in the globular cluster NGC 5466". The Astrophysical Journal 118 (6): 2875–2887. doi:10.1086/301132. Bibcode: 1999AJ....118.2875C.
- JEON Y.-B.; LEE M.G.; KIM S.-L.; LEE H. (2004). "SX Phoenicis stars in the globular cluster NGC 5466". The Astronomical Journal 128 (1): 287–299. doi:10.1086/421735. Bibcode: 2004AJ....128..287J.
- GRILLMAIR C.J.; JOHNSON R. (2006). "The detection of a 45° tidal stream associated with the globular cluster NGC 5466". The Astrophysical Journal 639 (1): L17–L20. doi:10.1086/501439. Bibcode: 2006ApJ...639L..17G.
- Fekadu, Nassissie; Sandquist, Eric L.; Bolte, Michael (2007). "Photometry of the Globular Cluster NGC 5466: Red Giants and Blue Stragglers". The Astrophysical Journal 663 (1): 277–295. doi:10.1086/518637. Bibcode: 2007ApJ...663..277F.
External links
- NGC 5466 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
- SIMBAD, NGC 5466 data
- VizieR, NGC 5466
- SEDS, NGC 5466
- Aladin, Image NGC 5466
Coordinates: 
14h 05m 27.36s, +28° 32′ 04.2″
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