Ngc 6304

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Short description: Globular cluster in the constellation Ophiuchus
NGC 6304
NGC6304atlas c.jpg
Observation data (J2000.0[1] epoch)
ClassVI [2]
ConstellationOphiuchus[3]
Right ascension 17h 14m 32.25s [1]
Declination−29° 27′ 43.3″ [1]
Distance19.2 kly [2]
Apparent magnitude (V)9.03 [1]
Apparent dimensions (V)3.8'
Physical characteristics
VHB16.25 [4]
Metallicity[math]\displaystyle{ \begin{smallmatrix}\left[\ce{Fe}/\ce{H}\right]\end{smallmatrix} }[/math] = -0.45 [4] dex
Estimated age~12.3 Gyr[5]
Other designationsBennett 90,[3]

C 1711-294,[1]
ESO 454-2,[1]
ESO 454-SC 002,[6]
GC 4275,[3]
GCl 56,[1]
h 3670,[3]
I 147,[3]
NGC 6304,[1]

VDBH 216[1]
See also: Globular cluster, List of globular clusters

NGC 6304 is a globular cluster in the constellation Ophiuchus. William Herschel discovered this star cluster using an 18.5-inch (47 cm) f/13 speculum reflector telescope in 1786.[3] It is about 19,000 light-years away, near the Milky Way's central bulge.[7]

Globular cluster NGC 6304, by HST (WFC3).

See also

  • NGC object
    • List of NGC objects
      • List of NGC objects (6001–7000)

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 "NGC 6304". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+6304. 
  2. ↑ 2.0 2.1 "NGC 6304". SEDS. http://spider.seds.org/spider/MWGC/n6304.html. 
  3. ↑ 3.0 3.1 3.2 3.3 3.4 3.5 "NGC 6304". Deep Sky Observer's Companion on-line database. http://www.docdb.net/show_object.php?id=ngc_6304. 
  4. ↑ 4.0 4.1 "NGC 6304". A Galactic Globular Cluster Database. http://gclusters.altervista.org/cluster_4.php?ggc=NGC+6304. 
  5. ↑ Forbes, D. A.; Bridges, T. (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. 
  6. ↑ "NGC 6304". NASA/IPAC Extragalactic Database. http://ned.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=NGC+6304&extend=no&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES. 
  7. ↑ Crossen, C.; Rhemann, G. (2004), Sky Vistas: Astronomy for Binoculars and Richest-Field Telescopes, Springer-Verlag, p. 254, ISBN 978-3-211-00851-5, https://archive.org/details/springer_10.1007-978-3-7091-0626-6/page/254 

External links

  • NED – NGC 6304
  • SEDS – NGC 6304
  • SIMBAD – NGC 6304
  • VizieR – NGC 6304




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Categories: [Globular clusters] [NGC objects]

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