Messier 3

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Messier 3
Messier3 - HST - Potw1914a.jpg
Hubble eemage o Messier 3.[1]
Observation data (J2000 epoch)
Cless VI[2]
Constellation Canes Venatici
Richt ascension 13h 42m 11.62s[3]
Declination +28° 22′ 38.2″[3]
Distance 33.9 kly (10.4 kpc)[4]
Apparent magnitude (V) +6.2[5]
Apparent dimensions (V) 18′.0
Pheesical chairacteristics
Mass 4.5×105[6] M
Radius 90 ly
Tidal radius 113 ly (30 pc)[mean][7]
Metallicity  = –1.34[8] dex
Estimatit age 11.39 Gyr[8]
Ither designations NGC 5272[5]
See an aw: Globular cluster, Leet o globular clusters

Messier 3 (M3 or NGC 5272) is a globular cluster o starns in the northren constellation o Canes Venatici. It wis diskivert on 3 Mey 1764,[9] an wis the first Messier object tae be diskivert bi Charles Messier himsel.

References[eedit | eedit soorce]

  1. "Blue rejuvenation". (in Inglis). Retrieved 8 April 2019. 
  2. Thompson, Robert Bruce; Thompson, Barbara Fritchman (2007), Illustrated guide to astronomical wonders, DIY science O'Reilly Series, O'Reilly Media, Inc., p. 137, ISBN 978-0-596-52685-6. 
  3. 3.0 3.1 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, arXiv:1008.2755Freely accessible, Bibcode:2010AJ....140.1830G, doi:10.1088/0004-6256/140/6/1830. 
  4. 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, Bibcode:2010AJ....139..476P, doi:10.1088/0004-6256/139/2/476. 
  5. 5.0 5.1 "M 3". SIMBAD. Centre de données astronomiques de Strasbourg. 
  6. Marks, Michael; Kroupa, Pavel (August 2010), "Initial conditions for globular clusters and assembly of the old globular cluster population of the Milky Way", Monthly Notices of the Royal Astronomical Society, 406 (3): 2000–2012, arXiv:1004.2255Freely accessible, Bibcode:2010MNRAS.406.2000M, doi:10.1111/j.1365-2966.2010.16813.x.  Mass is from MPD on Table 1.
  7. Brosche, P.; Odenkirchen, M.; Geffert, M. (March 1999). "Instantaneous and average tidal radii of globular clusters". New Astronomy. 4 (2): 133–139. Bibcode:1999NewA....4..133B. doi:10.1016/S1384-1076(99)00014-7. 
  8. 8.0 8.1 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, arXiv:1001.4289Freely accessible, Bibcode:2010MNRAS.404.1203F, doi:10.1111/j.1365-2966.2010.16373.x. 
  9. Machholz, Don (2002), The observing guide to the Messier marathon: a handbook and atlas, Cambridge University Press, ISBN 978-0-521-80386-1. 

Coordinates: Sky map 13h 42m 11.23s, 28° 22′ 31.6″