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LHS 2520 - 版本历史
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<p><b>新页面</b></p><div>{{noteTA<br />
|G1=天文学<br />
}}<br />
{{Starbox begin<br />
| name=LHS 2520<br />
}}<br />
{{Starbox observe<br />
| epoch=J2000<br />
| ra={{RA|12|10|05.597}}<br />
| dec={{DEC|−15|04|15.66}}<br />
| appmag_v=12.12<br />
| constell=[[烏鴉座]]<br />
}}<br />
{{Starbox character<br />
| class=M3.5V<ref name="Jenkins"/><br />
| b-v=<br />
| u-b=<br />
| variable=<br />
}}<br />
{{Starbox astrometry<br />
| radial_v=<br />
| prop_mo_ra=−65 <br />
| prop_mo_dec=−710<br />
| parallax=77.93<br />
| p_error=2.41<br />
| parallax_footnote=<ref name="reidel"/><br />
| absmag_v=<br />
}}<br />
{{Starbox detail<br />
| mass= <br />
| radius=<br />
| luminosity=<br />
| temperature=3024<ref name="Casagrande"/><br />
| metal_fe=<br />
| gravity=<br />
| rotational_velocity=<br />
| age_gyr=<br />
}}<br />
{{Starbox catalog<br />
| names=[[Luyten Half-Second catalogue|LHS]]&nbsp;2520, [[格利泽近星星表|GJ]]&nbsp;3707, LP 734-32.<br />
}}<br />
{{Starbox end}}<br />
'''LHS 2520'''，或稱為'''葛利斯3707'''（'''Gliese 3707'''），是一顆位於[[烏鴉座]]的[[紅矮星]]。該恆星的視星等是肉眼不可見的12.12，[[恆星光譜|光譜型]]為M3.5V<ref name="Jenkins"/>，表面溫度3024 K<ref name="Casagrande"/>。它因為亮度過低，無法以[[依巴谷卫星]]進行[[恆星視差|視差]]量測。地面望遠鏡量測結果顯示該恆星視差為77.93 ± 2.41 毫角秒，即距離地球42 ± 1光年<ref name="reidel"/>。<br />
<br />
==大眾文化中的LHS 2520==<br />
2012年11月7日出刊的《[[动作漫画]]》 #14（2013年1月號）中，天文學家[[奈爾·德葛拉司·泰森]]在故事中出場，並指出[[超人]]的故鄉[[氪星]]所環繞的恆星即為LHS 2520。泰森協助[[DC漫畫]]從實際存在的恆星中選出適當的氪星的母恆星，最後選出了位於烏鴉座的LHS 2520<ref>{{cite journal |author=Wall, Mike |date=7 November 2012 |url=http://www.scientificamerican.com/article.cfm?id=supermans-home-planet-krypton |title=Superman's Home Planet Krypton 'Found' |journal=Scientific American |access-date=2016-03-28 |archive-date=2013-11-15 |archive-url=https://web.archive.org/web/20131115220028/http://www.scientificamerican.com/article.cfm?id=supermans-home-planet-krypton |dead-url=no }}</ref><ref>{{cite web |author=Potter, Ned |date=5 November 2012 |url=http://abcnews.go.com/blogs/technology/2012/11/superman-home-planet-krypton-found-in-sky/ |title=Superman Home: Planet Krypton 'Found' in Sky |work=abc news website |accessdate=31 October 2014 |publisher=ABC News Internet Ventures |archive-date=2020-11-11 |archive-url=https://web.archive.org/web/20201111221901/https://abcnews.go.com/blogs/technology/2012/11/superman-home-planet-krypton-found-in-sky/ |dead-url=no }}</ref>，並且DC漫畫中超人就讀的高中吉祥物即為烏鴉<ref>{{cite news |author=Gregorian, Dareh |date=5 November 2012 |url=http://www.nypost.com/p/news/national/nyer_is_super_smart_seMJnvJaXju74neeqHgM2M |title=NYER is 'super' smart |work=New York Post |accessdate=31 October 2014 |archive-date=2013-06-17 |archive-url=https://web.archive.org/web/20130617082303/http://www.nypost.com/p/news/national/nyer_is_super_smart_seMJnvJaXju74neeqHgM2M |dead-url=no }}</ref>。<br />
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==參考資料==<br />
{{reflist|refs=<br />
<br />
<ref name="Casagrande">{{cite journal|author= Casagrande, Luca; Flynn, Chris; Bessell, Michael|date=2008|title=M dwarfs: effective temperatures, radii and metallicities|journal=Monthly Notices of the Royal Astronomical Society|volume=389|issue=2|pages=585–607|doi=10.1111/j.1365-2966.2008.13573.x |bibcode=2008MNRAS.389..585}}</ref><br />
<br />
<ref name="Jenkins">{{cite journal|author=Jenkins, J. S.; Ramsey, L. W.; Jones, H. R. A.; Pavlenko, Y.; Gallardo, J.; Barnes, J. R.; Pinfield, D. J.|date=2009|title=Rotational Velocities for M Dwarfs|url=https://archive.org/details/sim_astrophysical-journal_2009-10-20_704_2/page/974|journal=The Astrophysical Journal|volume=704|issue=2|pages=975–88|doi=10.1088/0004-637X/704/2/975 |bibcode=2009ApJ...704..975J}}</ref><br />
<br />
<ref name="reidel">{{cite journal|author=Riedel, Adric R.; Subasavage, John P.; Finch, Charlie T.; Jao, Wei-Chun; Henry, Todd J.; Winters, Jennifer G.; Brown, Misty A.; Ianna, Philip A.; Costa, Edgardo; Mendez, Rene A.|date=2010|title=The Solar Neighborhood. XXII. Parallax Results from the CTIOPI 0.9 m Program: Trigonometric Parallaxes of 64 Nearby Systems with 0farcs5 <=μ<= 1farcs0 yr-1 (SLOWMO Sample)|journal=The Astronomical Journal|volume=140|issue=3|pages=897–911|doi=10.1088/0004-6256/140/3/897 | bibcode=2010AJ....140..897R}}</ref><br />
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}}<br />
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{{Stars of Corvus}}<br />
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[[Category:烏鴉座]]<br />
[[Category:紅矮星]]<br />
[[Category:格利泽和GJ天体|3707]]</div>
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