| 词条 | IC 2714 |
| 释义 |
| name = IC 2714 | image = | caption = | credit = | type = Open Cluster | epoch = J2000 | constellation = Carina | ra = {{RA|11|17|27}}[1] | dec = {{DEC|-62|44|00}}[1] | dist_ly = 4,030 ly | dist_pc = 1,238 pc[2] | appmag_v = 8.2 [1] | size_v = 12' | mass_msol = 170[3] | age = 350 million years[2][7] | notes = | names = Collinder 245, vdBH 116 }}IC 2714 is an open cluster in the constellation Carina. It was discovered by James Dunlop in 1826.[4] It is located approximately 4,000 light years away from Earth, in the Carina–Sagittarius Arm.[5] CharacteristicsIt is a rich to moderately rich, intermediate-brightness, detached cluster with Trumpler type II2r or II3m.[4] There are 494 probable member stars within the angular radius of the cluster and 215 within the central part of the cluster.[6] 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.[6] The brightest stars of the cluster are of 11th magnitude and the brightest main sequence stars are of late B of A type.[14] Two blue stragglers have been detected in the cluster,[7] one variable star and eleven red giants.[8] The turn-off mass of the cluster is estimated to be at 3.1 {{solar mass|link=yes}}.[9] The cluster has the same metallicity as the Sun.[10] References1. ^1 2 {{cite simbad| title=IC 2714| accessdate=2015-06-19}} 2. ^1 WEBDA: IC 2714 3. ^1 {{cite journal|last1=Piskunov|first1=A. E.|last2=Schilbach|first2=E.|last3=Kharchenko|first3=N. V.|last4=Röser|first4=S.|last5=Scholz|first5=R.-D.|title=Tidal radii and masses of open clusters|journal=Astronomy & Astrophysics|date=6 November 2007|volume=477|issue=1|pages=165–172|doi=10.1051/0004-6361:20078525|url=ftp://cdsarc.u-strasbg.fr/pub/cats/J/A%2BA/477/165/table.dat|bibcode = 2008A&A...477..165P }} 4. ^1 {{cite book|last1=O'Meara|first1=Stephen James|title=Deep-Sky Companions: Southern Gems|date=2013|publisher=Cambridge University Press|isbn=9781139851541|pages=197–200|url=https://books.google.gr/books?id=BoIsCgAAQBAJ&pg=PA199|language=en}} 5. ^{{cite journal|last1=Carraro|first1=Giovanni|last2=Seleznev|first2=Anton F.|title=UBVI CCD photometry and star counts in nine inner disc Galactic star clusters|journal=Monthly Notices of the Royal Astronomical Society|date=21 February 2012|volume=419|issue=4|pages=3608–3623|doi=10.1111/j.1365-2966.2011.20010.x|arxiv=1110.3011|bibcode=2012MNRAS.419.3608C}} 6. ^1 {{cite journal|last1=Kharchenko|first1=N. V.|last2=Piskunov|first2=A. E.|last3=Schilbach|first3=E.|last4=Röser|first4=S.|last5=Scholz|first5=R.-D.|title=Global survey of star clusters in the Milky Way|journal=Astronomy & Astrophysics|date=3 October 2013|volume=558|pages=A53|doi=10.1051/0004-6361/201322302|url=ftp://cdsarc.u-strasbg.fr/pub/cats/J/A%2BA/558/A53/catalog.dat|arxiv = 1308.5822 |bibcode = 2013A&A...558A..53K }} 7. ^{{cite journal|last1=Ahumada|first1=J. A.|last2=Lapasset|first2=E.|title=New catalogue of blue stragglers in open clusters|journal=Astronomy & Astrophysics|date=20 November 2006|volume=463|issue=2|pages=789–797|doi=10.1051/0004-6361:20054590|url=ftp://cdsarc.u-strasbg.fr/pub/cats/J/A%2BA/463/789/table8.dat|bibcode=2007A&A...463..789A}} 8. ^1 {{cite journal|last1=Claria|first1=J. J.|last2=Mermilliod|first2=J.-C.|last3=Piatti|first3=A. E.|last4=Minniti|first4=D.|title=Photometric and CORAVEL observations of stars in the open cluster IC 2714.|journal=Astronomy and Astrophysics Supplement|date=October 1994|volume=107|pages=39–49|url=https://ui.adsabs.harvard.edu/?#abs/1994A%26AS..107...39C|language=en|bibcode=1994A&AS..107...39C}} 9. ^1 {{cite journal|last1=Delgado Mena|first1=E.|last2=Tsantaki|first2=M.|last3=Sousa|first3=S. G.|last4=Kunitomo|first4=M.|last5=Adibekyan|first5=V.|last6=Zaworska|first6=P.|last7=Santos|first7=N. C.|last8=Israelian|first8=G.|last9=Lovis|first9=C.|title=Searching for Li-rich giants in a sample of 12 open clusters|journal=Astronomy & Astrophysics|date=17 February 2016|volume=587|pages=A66|doi=10.1051/0004-6361/201527196|arxiv=1512.05296|bibcode=2016A&A...587A..66D}} 10. ^{{cite journal|last1=Santos|first1=N. C.|last2=Lovis|first2=C.|last3=Pace|first3=G.|last4=Melendez|first4=J.|last5=Naef|first5=D.|title=Metallicities for 13 nearby open clusters from high-resolution spectroscopy of dwarf and giant stars|journal=Astronomy & Astrophysics|date=20 November 2008|volume=493|issue=1|pages=309–316|doi=10.1051/0004-6361:200811093|arxiv=0811.2392|bibcode=2009A&A...493..309S}} External links{{wikiSky}} 3 : IC objects|Carina (constellation)|Open clusters |
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