Globular cluster in the constellation of Ophiuchus
NGC 6316
NGC 6316 as seen through the Hubble Space Telescope
Observation data (J2000 epoch)
Class
III[1]
Constellation
Ophiuchus
Right ascension
17h 16m 37.42s[2]
Declination
−28° 08′ 24.0″[2]
Distance
36.86 ± 0.98 kly (11.3 ± 0.3 kpc)[3]
Apparent magnitude (V)
9.03[2]
Apparent dimensions (V)
4.9′ × 4.9′[1]
Physical characteristics
Metallicity
= -0.45[4] dex
Estimated age
13.1 ± 0.5 Gyr[3]
Notable features
Relatively metal-rich globular cluster
Other designations
GCl 57, VDBH 219[2]
See also: Globular cluster, List of globular clusters
NGC 6316 is a globular cluster located in the constellation Ophiuchus. Its Shapley-Sawyer Concentration Class is III, meaning that it has a "strong inner core of stars" and was discovered by the German-born British astronomer William Herschel on 24 May 1784.[5] It is at a distance of about 37,000 light years away from the Earth.[3] NGC 6316 has a metallicity of -0.45;[4] this means that its ratio of hydrogen/helium to other elements is only 35% that of the Sun, but still enough to be considered a "metal-rich" globular cluster.[6]
^ abcd"NGC 6136". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 6 February 2017.
^ abcDeras, Dan; Cadelano, Mario; Ferraro, Francesco R.; Lanzoni, Barbara; Pallanca, Cristina (2023). "Digging into the Galactic Bulge: Stellar Population and Structure of the Poorly Studied Cluster NGC 6316". The Astrophysical Journal. 942 (2): 104. arXiv:2212.03649. Bibcode:2023ApJ...942..104D. doi:10.3847/1538-4357/aca9ce. S2CID 254366515.
^ abWilliam E. Harris. "Catalog of Parameters for Milky Way Globular Clusters". Retrieved 3 February 2017.
^Layden, Andrew C.; Bowes, Benjamin T.; Welch, Douglas L.; Webb, Tracy M. A. (2003). "Variable Stars in Metal-Rich Globular Clusters. II. NGC 6316". The Astronomical Journal. 126 (1): 255–264. arXiv:astro-ph/0304077. Bibcode:2003AJ....126..255L. doi:10.1086/375651. S2CID 8720908.
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