Astronomy:IC 2714
| IC 2714 | |
|---|---|
| Observation data (J2000 epoch) | |
| Constellation | Carina |
| 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 |
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
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
References
- ↑ 1.0 1.1 1.2 "IC 2714". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=IC+2714.
- ↑ 2.0 2.1 WEBDA: IC 2714
- ↑ 3.0 3.1 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. doi:10.1051/0004-6361:20078525. Bibcode: 2008A&A...477..165P. ftp://cdsarc.u-strasbg.fr/pub/cats/J/A%2BA/477/165/table.dat.
- ↑ 4.0 4.1 Delgado Mena, E.; Tsantaki, M.; Sousa, S. G.; Kunitomo, M.; Adibekyan, V.; Zaworska, P.; Santos, N. C.; Israelian, G. et al. (17 February 2016). "Searching for Li-rich giants in a sample of 12 open clusters". Astronomy & Astrophysics 587: A66. doi:10.1051/0004-6361/201527196. Bibcode: 2016A&A...587A..66D.
- ↑ 5.0 5.1 O'Meara, Stephen James (2013) (in en). Deep-Sky Companions: Southern Gems. Cambridge University Press. pp. 197–200. ISBN 9781139851541. https://books.google.com/books?id=BoIsCgAAQBAJ&pg=PA199.
- ↑ 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. doi:10.1111/j.1365-2966.2011.20010.x. Bibcode: 2012MNRAS.419.3608C.
- ↑ 7.0 7.1 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. doi:10.1051/0004-6361/201322302. Bibcode: 2013A&A...558A..53K. ftp://cdsarc.u-strasbg.fr/pub/cats/J/A%2BA/558/A53/catalog.dat.
- ↑ 8.0 8.1 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." (in en). Astronomy and Astrophysics Supplement 107: 39–49. Bibcode: 1994A&AS..107...39C. https://ui.adsabs.harvard.edu/?#abs/1994A%26AS..107...39C.
- ↑ Ahumada, J. A.; Lapasset, E. (20 November 2006). "New catalogue of blue stragglers in open clusters". Astronomy & Astrophysics 463 (2): 789–797. doi:10.1051/0004-6361:20054590. Bibcode: 2007A&A...463..789A. ftp://cdsarc.u-strasbg.fr/pub/cats/J/A%2BA/463/789/table8.dat.
- ↑ 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. doi:10.1051/0004-6361:200811093. Bibcode: 2009A&A...493..309S.
External links
- IC 2714 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
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