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K2-22b - 版本历史
2026-07-17T20:09:43Z
在这个wiki上该页的修订历史
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imported>Nostalgiacn：/* 參見 */
2025-02-17T11:06:58Z
<p><span class="autocomment">參見</span></p>
<p><b>新页面</b></p><div>{{Planetbox begin<br />
| name=K2-22b<br />
}}<br />
{{Planetbox star<br />
| star = [[K2-22]] <br />
| constell= <!---please check this---><br />
| RA = 11h17m55.88s <ref name=NasaExoplanetArchive>{{cite web<br />
| url=http://exoplanetarchive.ipac.caltech.edu/cgi-bin/DisplayOverview/nph-DisplayOverview?objname=K2-22+b&type=CONFIRMED_PLANET<br />
| title=K2-22 b CONFIRMED PLANET OVERVIEW PAGE<br />
| work=NASA Exoplanet Archive<br />
| accessdate=2015-10-14<br />
| archive-date=2019-07-07<br />
| archive-url=https://web.archive.org/web/20190707054805/https://exoplanetarchive.ipac.caltech.edu/cgi-bin/DisplayOverview/nph-DisplayOverview?objname=k2-22+b&type=CONFIRMED_PLANET<br />
| dead-url=no<br />
}}</ref><br />
| DEC= +02d37m08.7s<ref name=NasaExoplanetArchive/><br />
| dist_ly = 733.852±163<br />
| dist_pc = 225±50<ref name=NasaExoplanetArchive/><br />
| app_mag = <br />
| mass = <0.60±0.07<ref name=NasaExoplanetArchive/><br />
| radius = <0.57±0.06<ref name=NasaExoplanetArchive/><br />
| temperature = 3830±100<ref name=NasaExoplanetArchive/><br />
| metallicity = 0.030±0.080<ref name=NasaExoplanetArchive/><br />
| age =<br />
}}<br />
{{Planetbox character<br />
| mass_earth = <445<ref name=NasaExoplanetArchive/><br />
| radius_earth = <2.5±0.4<ref name=NasaExoplanetArchive/><br />
| density_cgs = <157.1 g/cm3<ref name=NasaExoplanetArchive/><br />
| temperature = {{convert|2100|K|C}}<br />
}}<br />
{{Planetbox orbit<br />
| period = 0.381078<ref name=NasaExoplanetArchive/><br />
| orbital velocity =<br />
| semimajor = 0.0088<ref name=NasaExoplanetArchive/><br />
| eccentricity =null<ref name=NasaExoplanetArchive/><br />
| inclination =null<ref name=NasaExoplanetArchive/><br />
}}<br />
{{Planetbox discovery<br />
| discovery_date = 2015年<br />
| discoverers =<br />
| discovery_site = [[克卜勒太空望遠鏡]]<br />
| discovery_method = 凌日法<br />
| detection_methods = <br />
| discovery_status = 確認<br />
}}<br />
{{Planetbox end}}<br />
'''K2-22b'''，或稱為'''EPIC 201637175 b'''，是一顆距離地球734光年的[[太陽系外行星]]，並以9.145872小時的極短周期環繞[[紅矮星]][[K2-22]]<ref name=NasaExoplanetArchive/>。它的質量上限是445 [[地球質量|{{Earth mass}}]]，半徑為2.5 [[地球半徑|{{Earth radius}}]]。K2-22b並未在克卜勒太空望遠鏡的K2任務{{link-en|測光 (天文學)|Photometry (astronomy)|測光}}中被觀測到，但是在光譜中發現了異常的光變曲線，並且該曲線與沙礫的譜線一致。而且從行星噴出的塵埃在行星前後形成了氣體尾，與太陽系中部份彗星的彗尾相似<ref name=K2-ESPRINT>{{Cite journal|title = The K2-ESPRINT Project. I. Discovery of the Disintegrating Rocky Planet K2-22b with a Cometary Head and Leading Tail|journal = The Astrophysical Journal|date = 2015-10-14|issn = 1538-4357|pages = 112|volume = 812|issue = 2|doi = 10.1088/0004-637X/812/2/112|first = R.|last = Sanchis-Ojeda|first2 = S.|last2 = Rappaport|first3 = E.|last3 = Pallé|first4 = L.|last4 = Delrez|first5 = J.|last5 = DeVore|first6 = D.|last6 = Gandolfi|first7 = A.|last7 = Fukui|first8 = I.|last8 = Ribas|first9 = K. G.|last9 = Stassun|arxiv = 1504.04379 |bibcode = 2015ApJ...812..112S }}</ref>。<br />
<br />
K2-22b的體積與質量被認為是熱木星，並且軌道半長軸距離母恆星只有0.0088天文單位，是距離母恆星最近的熱木星之一<ref>{{cite web|url=https://archiv.ub.uni-heidelberg.de/volltextserver/20207/1/thesis_Simona_Ciceri.pdf|title=Characterizing Transiting Extrasolar Planets|last=Ciceri|first=Simona|website=[[马克斯·普朗克天文研究所|Max Planck Institute for Astronomy]]|page=28|date=2015|access-date=3 April 2016|archive-date=2016-04-16|archive-url=https://web.archive.org/web/20160416003243/https://archiv.ub.uni-heidelberg.de/volltextserver/20207/1/thesis_Simona_Ciceri.pdf|dead-url=no}}</ref>。<br />
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{{Portal|天文}}<br />
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==參考資料==<br />
{{reflist}}<br />
<br />
{{2015年太空活動}}<br />
<br />
[[Category:2015年发现的系外行星]]<br />
[[Category:凌星现象]]<br />
[[Category:克卜勒太空望遠鏡發現的系外行星|K2-2]]</div>
imported>Nostalgiacn