NGC 5466

NGC 5466
NGC 5466 by Hubble Space Telescope; 3.5′ view. Credit: NASA/STScI/WikiSky
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	–2.20[5] dex
Estimated age	13.57 Gyr[5]
Other designations	C 1403+287, GCl 27, GC 3776, h 1746, H 6.
See also: Globular cluster, List of globular clusters

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.

References

Further reading

• BROSCHE P.; GEFFERT M.; Geffert (1983). "Membership of above horizontal branch stars in the globular cluster NGC 5466". The Astrophysical Journal 127: 415–416. Bibcode:1983A&A...127..415B. 
• BUONANNO R.; BUSCEMA G.; CORSI C.E.; IANNICOLA G.; FUSI PECCI F.; Buscema; Corsi; Iannicola; Fusi Pecci (1984). "Positions, magnitudes and colors for stars in the globular cluster NGC 5466". The Astrophysical Journal 56: 79–86. Bibcode:1984A&AS...56...79B. 
• ZINN R.; KING R. (1982). "The mass of the anomalous Cepheid in the globular cluster NGC 5466". The Astrophysical Journal 262: 700–708. Bibcode:1982ApJ...262..700Z. doi:10.1086/160462. 
• MONTGOMERY K.A.; HEASLEY J.N.; JANES K.A.; Heasley; Janes (1994). "Photometry of globular cluster NGC 5466". Bull. American Astron. Soc. 26: 1490. Bibcode:1994BAAS...26.1490M. 
• PRYOR C.; McCLURE R.D.; FLETCHER J.M.; HESSER J.E. (1991). "Mass-light ratios for globular clusters. II. The low-concentration clusters NGC 288, NGC 5466, and M 55 (NGC 6809)". The Astrophysical Journal 102: 1026–1042. Bibcode:1991AJ....102.1026P. doi:10.1086/115929. 
• BUONANNO R.; CORSI C.E.; FUSI PECCI F.; Corsi; Fusi Pecci (1985). "The giant, asymptotic and horizontal branches of globular clusters. II. Photographic of the metal-poor clusters M 15, M 92 and NGC 5466". The Astrophysical Journal 145: 97–117. Bibcode:1985A&A...145...97B. 
• MATEO M.; HARRIS H.C.; NEMEC J.; OLSZEWSKI E.W. (1990). "Blue stragglers as remnants of stellar mergers: the discovery of short-period eclipsing binaries in globular cluster NGC 5466". The Astrophysical Journal 100: 469–484. Bibcode:1990AJ....100..469M. doi:10.1086/115530. 
• BELOKUROV V.; EVANS N.W.; IRWIN M.J.; HEWETT P.C.; WILKINSON M.I. (2006). "The discovery of tidal tails around the globular cluster NGC 5466". The Astrophysical Journal 637: L29–L32. arXiv:astro-ph/0511767. Bibcode:2006ApJ...637L..29B. doi:10.1086/500362. 
• 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. arXiv:0711.4027. Bibcode:2008MNRAS.384.1444F. doi:10.1111/j.1365-2966.2007.12760.x. 
• 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: 203–229. Bibcode:1997ApJ...482..203M. doi:10.1086/304118. 
• LEHMANN I.; SCHOLZ R.-D.; Scholz (1997). "Tidal radii of the globular clusters M 5, M 12, M 13, M 15, M 53, NGC 5053 and NGC 5466 from automated star counts". The Astrophysical Journal 320: 776–782. Bibcode:1997A&A...320..776L. 
• 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. Bibcode:1999AJ....118.2875C. doi:10.1086/301132. 
• PEIKOV Z.I. (2002). "Logartithmic density range and the percentage of stars in the cores of various subsystems of the globular clusters M 56, M 12, NGC 6535, NGC 6171, NGC 5466, and M 92". Astronomy Reports 46 (5): 352–359. Bibcode:2002ARep...46..352P. doi:10.1134/1.1479422. 
• JEON Y.-B.; LEE M.G.; KIM S.-L.; LEE H. (2004). "SX Phoenicis stars in the globular cluster NGC 5466". The Astrophysical Journal 128: 287–299. arXiv:astro-ph/0404069. Bibcode:2004AJ....128..287J. doi:10.1086/421735. 
• ROJAS LOPEZ V.; ARELLANO FERRO A.; GIRIDHAR S.; BRAMICH D.M.; Arellano Ferro; Giridhar; Bramich (2006). "Physical parameters of RR Lyrae stars in the globular cluster NGC 5466: The Oosterhoff dichotomy". Rev. Mex. Astron. Astrofis. Serie de Conf. 26: 49–49. Bibcode:2006RMxAC..26...49R. 
• GRILLMAIR C.J.; JOHNSON R. (2006). "The detection of a 45° tidal stream associated with the globular cluster NGC 5466". The Astrophysical Journal 639: L17–L20. arXiv:astro-ph/0602602. Bibcode:2006ApJ...639L..17G. doi:10.1086/501439. 
• 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. arXiv:astro-ph/0602602. Bibcode:2007ApJ...663..277F. doi:10.1086/518637. 

External links

Wikimedia Commons has media related to NGC 5466.

• 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: 14^h 05^m 27.36^s, +28° 32′ 04.2″