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 |
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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