Astronomy:NGC 6316
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| 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] -0.87[5] -0.90[3] dex |
| Estimated age | 13.1 ± 0.5 Gyr[3] |
| Notable features | Relatively metal-rich globular cluster |
| Other designations | GCl 57, VDBH 219[2] |
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
References
- ↑ 1.0 1.1 Hartmut Frommert. "NGC 6316 - Hartmut Frommert - SEDS". SEDS. http://spider.seds.org/spider/MWGC/n6316.html.
- ↑ 2.0 2.1 2.2 2.3 "NGC 6136". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+6136.
- ↑ 3.0 3.1 3.2 3.3 3.4 Deras, 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. doi:10.3847/1538-4357/aca9ce. Bibcode: 2023ApJ...942..104D.
- ↑ 4.0 4.1 "Catalog of Parameters for Milky Way Globular Clusters". http://physwww.mcmaster.ca/~harris/mwgc.dat.
- ↑ 5.0 5.1 Conroy, Charlie; Villaume, alexa; van Dokkum, Pieter G.; Lind, karin (February 2018). "Metal-rich, Metal-poor: Updated Stellar Population Models for Old Stellar Systems". The Astrophysical Journal 854 (2): 139. doi:10.3847/1538-4357/aaab49. Bibcode: 2018ApJ...854..139C.
- ↑ Seligman, Courtney. "NGC 6316 (= GCL 57)". http://cseligman.com/text/atlas/ngc63.htm#6316.
- ↑ 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. doi:10.1086/375651. Bibcode: 2003AJ....126..255L.
External links
Template:NGC objects:6000-6499
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