NGC 6316 explained

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.^[6] 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] although new studies suggest this cluster to be more metal Poor, with a metallicity of -0.87 ^[5] and -0.9;^[3] 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.^[7]

See also

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

Notes and References

1. Web site: NGC 6316 - Hartmut Frommert - SEDS. SEDS. Hartmut Frommert. 6 February 2017.
2. NGC 6136. 6 February 2017.
3. 10.3847/1538-4357/aca9ce . Digging into the Galactic Bulge: Stellar Population and Structure of the Poorly Studied Cluster NGC 6316 . 2023 . Deras . Dan . Cadelano . Mario . Ferraro . Francesco R. . Lanzoni . Barbara . Pallanca . Cristina . The Astrophysical Journal . 942 . 2 . 104 . 2212.03649 . 2023ApJ...942..104D . 254366515 . free .
4. Web site: Catalog of Parameters for Milky Way Globular Clusters. William E. Harris. 3 February 2017.
5. Conroy . Charlie . Villaume . alexa . van Dokkum . Pieter G. . Lind . karin . Metal-rich, Metal-poor: Updated Stellar Population Models for Old Stellar Systems . The Astrophysical Journal . February 2018 . 854 . 2 . 139 . 10.3847/1538-4357/aaab49 . free . 1801.10185 . 2018ApJ...854..139C . Conroy2018.
6. Web site: Seligman. Courtney. NGC 6316 (= GCL 57). cseligman. 4 October 2015.
7. Variable Stars in Metal-Rich Globular Clusters. II. NGC 6316. Layden, Andrew C.. Bowes, Benjamin T.. Welch, Douglas L.. Webb, Tracy M. A.. The Astronomical Journal. 126. 1. 255–264. 2003. 2003AJ....126..255L. 10.1086/375651. astro-ph/0304077. 8720908 .