IC 2714
| IC 2714 | |
|---|---|
| Observation data (J2000 epoch) | |
| Right ascension | 11h 17m 27s[1] |
| Declination | −62° 44′ 00″[1] |
| Distance | 4,030 ly (1,238 pc [2] ) |
| Apparent magnitude (V) | 8.2 [1] |
| Apparent dimensions (V) | 12' |
| Physical characteristics | |
| Mass | 170[3] M☉ |
| Estimated age | 350 million years[2] [4] |
| Other designations | Collinder 245, Melotte 104, vdBH 116 |
| Associations | |
| Constellation | Carina |
| See also: Open cluster, List of open clusters | |
IC 2714 is an open cluster in the constellation Carina. It was discovered by James Dunlop in 1826.[5] It is located approximately 4,000 light years away from Earth, in the Carina–Sagittarius Arm.[6]
Characteristics
[edit ]It is a rich to moderately rich, intermediate-brightness, detached cluster with Trumpler type II2r or II3m.[5] There are 494 probable member stars within the angular radius of the cluster and 215 within the central part of the cluster.[7] The tidal radius of the cluster is 6.3 - 8.7 parsecs (21 - 28 light years) and represents the average outer limit of IC 2714, beyond which a star is unlikely to remain gravitationally bound to the cluster core.[3] The core of the cluster is estimated to be 5.9 light years across.[7]
The brightest stars of the cluster are of 11th magnitude and the brightest main sequence stars are of late B of A type.[8] Two blue stragglers have been detected in the cluster,[9] one variable star and eleven red giants.[8] The turn-off mass of the cluster is estimated to be at 3.1 M☉.[4] The cluster has the same metallicity as the Sun.[10]
See also
[edit ]References
[edit ]- ^ a b c "IC 2714". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2015年06月19日.
- ^ a b WEBDA: IC 2714
- ^ a b Piskunov, A. E.; Schilbach, E.; Kharchenko, N. V.; Röser, S.; Scholz, R.-D. (6 November 2007). "Tidal radii and masses of open clusters". Astronomy & Astrophysics. 477 (1): 165–172. Bibcode:2008A&A...477..165P. doi:10.1051/0004-6361:20078525 .
- ^ a b Delgado Mena, E.; Tsantaki, M.; Sousa, S. G.; Kunitomo, M.; Adibekyan, V.; Zaworska, P.; Santos, N. C.; Israelian, G.; Lovis, C. (17 February 2016). "Searching for Li-rich giants in a sample of 12 open clusters". Astronomy & Astrophysics. 587: A66. arXiv:1512.05296 . Bibcode:2016A&A...587A..66D. doi:10.1051/0004-6361/201527196. S2CID 119221224.
- ^ a b O'Meara, Stephen James (2013). Deep-Sky Companions: Southern Gems. Cambridge University Press. pp. 197–200. ISBN 9781139851541.
- ^ Carraro, Giovanni; Seleznev, Anton F. (21 February 2012). "UBVI CCD photometry and star counts in nine inner disc Galactic star clusters". Monthly Notices of the Royal Astronomical Society. 419 (4): 3608–3623. arXiv:1110.3011 . Bibcode:2012MNRAS.419.3608C. doi:10.1111/j.1365-2966.2011.20010.x . S2CID 118542242.
- ^ a b Kharchenko, N. V.; Piskunov, A. E.; Schilbach, E.; Röser, S.; Scholz, R.-D. (3 October 2013). "Global survey of star clusters in the Milky Way". Astronomy & Astrophysics. 558: A53. arXiv:1308.5822 . Bibcode:2013A&A...558A..53K. doi:10.1051/0004-6361/201322302. S2CID 118548517.
- ^ a b Claria, J. J.; Mermilliod, J.-C.; Piatti, A. E.; Minniti, D. (October 1994). "Photometric and CORAVEL observations of stars in the open cluster IC 2714". Astronomy and Astrophysics Supplement. 107: 39–49. Bibcode:1994A&AS..107...39C.
- ^ Ahumada, J. A.; Lapasset, E. (20 November 2006). "New catalogue of blue stragglers in open clusters". Astronomy & Astrophysics. 463 (2): 789–797. Bibcode:2007A&A...463..789A. doi:10.1051/0004-6361:20054590 .
- ^ Santos, N. C.; Lovis, C.; Pace, G.; Melendez, J.; Naef, D. (20 November 2008). "Metallicities for 13 nearby open clusters from high-resolution spectroscopy of dwarf and giant stars". Astronomy & Astrophysics. 493 (1): 309–316. arXiv:0811.2392 . Bibcode:2009A&A...493..309S. doi:10.1051/0004-6361:200811093. S2CID 17774555.
External links
[edit ]- IC 2714 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
