NGC 6208
| NGC 6208 | |
|---|---|
 NGC 6208 (taken from Stellarium) | |
| Observation data (J2000 epoch) | |
| Constellation | Ara |
| Right ascension | 16h 49m 28.(0)s[1] |
| Declination | −53° 43′ 4(2)″[1] |
| Distance | 3,060 ly (939 pc)[2] |
| Apparent magnitude (V) | 7.2[3] |
| Apparent dimensions (V) | 18′[3] |
| Physical characteristics | |
| Estimated age | 1.17[4] Gyr |
| Other designations | C1645-537, Collinder 313, VDBH 198 |
Map showing the location of NGC 6208
NGC 6208 is an open cluster in the southern constellation of Ara. With an age of 1.17 Gigayears, it is one of the oldest known open clusters.
References
- 1 2 Xin, Y.; Deng, L. (February 2005), "Blue Stragglers in Galactic Open Clusters and Integrated Spectral Energy Distributions", The Astrophysical Journal, 619 (2): 824–838, arXiv:astro-ph/0410325
, Bibcode:2005ApJ...619..824X, doi:10.1086/426681. - ↑ Kharchenko, N. V.; et al. (August 2005), "Astrophysical parameters of Galactic open clusters", Astronomy and Astrophysics, 438 (3): 1163–1173, arXiv:astro-ph/0501674, Bibcode:2005A&A...438.1163K, doi:10.1051/0004-6361:20042523.
- 1 2 Inglis, Mike (2013), Observer’s Guide to Star Clusters, The Patrick Moore Practical Astronomy Series, Springer Science & Business Media, p. 27, ISBN 1461475678.
- ↑ Piskunov, A. E.; et al. (January 2008), "Tidal radii and masses of open clusters", Astronomy and Astrophysics, 477 (1): 165–172, Bibcode:2008A&A...477..165P, doi:10.1051/0004-6361:20078525.
External links
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