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PH2 - 版本历史
2026-07-13T14:27:38Z
本wiki上该页面的版本历史
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https://arolstar52-zhtest.hf.space/index.php?title=PH2&diff=2149498&oldid=prev
imported>Jimmy-bot：机器人: 尚未清空的已重定向分类（Cat:G-型恒星→Cat:G型恒星）
2024-06-25T08:48:24Z
<p>机器人: 尚未清空的已重定向分类（<a href="/index.php?title=Cat:G-%E5%9E%8B%E6%81%92%E6%98%9F&action=edit&redlink=1" class="new" title="Cat:G-型恒星（页面不存在）">Cat:G-型恒星</a>→<a href="/index.php?title=Cat:G%E5%9E%8B%E6%81%92%E6%98%9F&action=edit&redlink=1" class="new" title="Cat:G型恒星（页面不存在）">Cat:G型恒星</a>）</p>
<p><b>新页面</b></p><div>{{noteTA<br />
|1=zh-cn:空间望远镜; zh-tw:太空望遠鏡; zh-hk:太空望遠鏡;<br />
|2=zh-cn:开普勒; zh-tw:克卜勒; zh-hk:開普勒<br />
}}<br />
{{starbox begin<br />
|name = PH2<br />
}}<br />
{{starbox image<br />
|image = <br />
|caption = <br />
|credit = <br />
}}<br />
{{Starbox observe<br />
| epoch = J2000<ref name=Vizier>{{cite web | url=http://vizier.u-strasbg.fr/viz-bin/VizieR-5?-ref=VIZ51c046841ec0&-out.add=.&-source=I/297/out&-c=289.7639500%2b51.9627667,eq=J2000,rs=0.006 | title=Vizier Search Result | publisher=UDS/CNRS | work= | accessdate=June 18, 2013 | archive-date=2019-02-17 | archive-url=https://web.archive.org/web/20190217122827/http://vizier.u-strasbg.fr/viz-bin/VizieR-5?-ref=VIZ51c046841ec0&-out.add=.&-source=I%2F297%2Fout&-c=289.7639500%2B51.9627667%2Ceq%3DJ2000%2Crs%3D0.006 | dead-url=no }}</ref><br />
| equinox = J2000<ref name=Vizier /><br />
| constell = [[天鵝座]]<ref name=Independent>{{cite web | url=http://www.independent.co.uk/news/science/moons-could-hold-alien-life-like-pandora-in-avatar-8441343.html | title=Moons 'could hold alien life like Pandora in Avatar' | publisher=The Independent | work=JOHN VON RADOWITZ | accessdate=January 7, 2013 | archive-date=2013-05-18 | archive-url=https://web.archive.org/web/20130518183333/http://www.independent.co.uk/news/science/moons-could-hold-alien-life-like-pandora-in-avatar-8441343.html | dead-url=no }}</ref><br />
| pronounce = <!--Pronunciation guide--><br />
| ra = {{RA|19|19|03.264}}<br />
| dec = {{dec|+51|57|45.36}}<br />
}}<br />
{{Starbox character<br />
| type = <!--Type of star (e.g., main sequence star, protostar, white dwarf, neutron star, etc.)--><br />
| class = G<ref name=KIC>{{cite web | url=http://archive.stsci.edu/kepler/data_search/search.php?action=Search&ktc_kepler_id=12735740 | title=Kepler Data Search Results | publisher=Space Telescope Science Institute | work=MAST | accessdate=January 12, 2013 | archive-date=2013-02-17 | archive-url=https://archive.today/20130217111142/http://archive.stsci.edu/kepler/data_search/search.php?action=Search&ktc_kepler_id=12735740 | dead-url=no }}</ref><ref name=class group=note>該恆星表面溫度5629 K，和太陽表面的5778 K相近。</ref> <br />
|appmag_1_passband = J<br />
| appmag_1 = {{val|11.501|0.023}}<ref name=Vizier /><br />
| appmag_2_passband = H<br />
| appmag_2 = {{val|11.182|0.03}}<ref name=Vizier /><br />
| appmag_3_passband = K<br />
| appmag_3 = {{val|11.116|0.022}}<ref name=Vizier /><br />
| appmag_4_passband = B1<br />
| appmag_4 = 12.34<ref name=Vizier /><br />
| appmag_5_passband = R1<br />
| appmag_5 = 12.62<ref name=Vizier /><br />
| appmag_6_passband = <!-- Passband for sixth apparent magnitude (e.g., H, J, K, etc.) --><br />
| appmag_6 = <!-- Value of sixth apparent magnitude --><br />
| appmag_7_passband = <!-- Passband for seventh apparent magnitude (e.g., H, J, K, etc.) --><br />
| appmag_7 = <!-- Value of seventh apparent magnitude --><br />
| appmag_8_passband = <!-- Passband for eighth apparent magnitude (e.g., H, J, K, etc.) --><br />
| appmag_8 = <!-- Value of eighth apparent magnitude --><br />
| r-i = <!--R-I color--><br />
| v-r = <!--V-R color--><br />
| b-v = 0.072<ref name=KIC /><br />
| u-b = <!--U-B color--><br />
| j-h = <!--J-H color--><br />
| j-k = <!--J-K color--><br />
| variable = <!--Variability type--><br />
}}<br />
{{Starbox astrometry<br />
| radial_v = <!--Radial velocity (in km/sec)--><br />
| prop_mo_ra = {{val|4|4}}<ref name=Vizier /><ref group=note name=sigfigs>資料來源只提供一位[[有效數字]]。</ref><br />
| prop_mo_dec = {{val|14|4}}<ref name=Vizier /><ref group=note name=sigfigs />| parallax = <!--Parallax (in milliarcsec)--><br />
| p_error = <!--Parallax error (in milliarcsec)--><br />
| parallax_footnote = <!--Parallax footnote--><br />
| dist_ly = 1205.9<ref name="OEC-PH2">{{cite web |authors=Staff |title=Open Exoplanet Catalogue - PH-2 |url=http://exoplanet.hanno-rein.de/system.html?id=PH-2%20b |date= |publisher=Open Exoplanet Catalogue |accessdate=February 26, 2013 }}{{Dead link}}</ref><!--Distance (in light years)--><br />
| dist_pc = 369.9<ref name="OEC-PH2" /><!--Distance (in parsecs)--><br />
| absmag_v = <!--Absolute magnitude ([[UBV photometric system|Johnson-Cousins V system]])--><br />
| absmag_bol = {{val|5.01|+0.12|-0.12}}<ref name=mamajek-2012>{{cite web | url=http://www.pas.rochester.edu/~emamajek/sun.txt | title=Basic Astronomical Data for the Sun (BADS) | publisher=University of Rochester | date=December 30, 2012 | accessdate=January 12, 2013 | author=Mamajek, Eric | archive-date=2013-05-02 | archive-url=https://web.archive.org/web/20130502074715/http://www.pas.rochester.edu/~emamajek/sun.txt | dead-url=no }}</ref><ref name=absmag group=note>本計算基於光度差異的-2.5 log<sub>10</sub>。</ref><br />
}}<br />
{{Starbox detail<br />
| source = <!--[source url]--><br />
| mass = {{val|0.94|0.02}}<ref name=wang-2013 /> <!--Mass (in solar masses)--><br />
| mass_mj = <!--Mass (in Jupiter masses)--><br />
| radius = {{val|1.00|0.05}}<ref name=wang-2013 /> <br />
| radius_rj = <!--Radius (in Jupiter radii)--><br />
| luminosity = <!--Luminosity (in solar luminosities); prefer luminosity_bolometric or luminosity_visual--><br />
| luminosity_bolometric = {{val|0.79|+0.09|-0.08}}<ref name=wang-2013 /><br />
| luminosity_visual = <!--Luminosity (in solar luminosities), visual (V)--><br />
| gravity = {{val|4.408|0.044}}<ref name=wang-2013 /><br />
| temperature = {{val|5629|+42|-45}}<ref name=wang-2013 /> <br />
| metal = <!--Metallicity (no units provided by template)--><br />
| metal_fe = {{val|-0.07|0.05}}<br />
| rotation = <!--Rotation (no units provided by template)--><br />
| rotational_velocity = {{val|1.43|0.08}}<br />
| age = <!--Age (in years)--><br />
| age_myr = <!--Age (in millions of years)--><br />
| age_gyr = <!--Age (in billions of years)--><br />
}}<br />
{{Starbox catalog<br />
| names = [[2MASS]] 19190326+5157453<br />
[[Kepler Input Catalog|KIC]] 12734750<br />
| component1 = <!-- Double star component 1 primary designation --><br />
| names1 = <!-- Other catalog designations for component 1 --><br />
| component2 = <!-- Double star component 2 primary designation --><br />
| names2 = <!-- Other catalog designations for component 2--><br />
}}<br />
{{starbox reference<br />
|KIC=12735740<br />
|Simbad=KIC+12735740<br />
}}<br />
{{starbox end}}<br />
<br />
<!--the Simbad reference will work once that database is fixed--><br />
'''PH2'''，即'''克卜勒86'''（'''Kepler-86'''），或稱為'''KIC 12735740'''，是一顆[[天鵝座]]<ref name=Independent/>的[[恆星光譜|光譜類型]] G 型恆星<ref name=wang-2013 /><ref group=note name=class />，距離地球1205.9光年（369.7秒差距）<ref name="OEC-PH2" />。該恆星的體積與表面溫度和太陽相當<ref name=KIC /><ref name=sunfactsheet>{{cite web | url=http://nssdc.gsfc.nasa.gov/planetary/factsheet/sunfact.html | title=Sun Fact Sheet | publisher=National Aeronautics and Space Administration | date=March 2, 2012 | accessdate=January 12, 2013 | author=Williams, David R. | archive-date=2010-07-15 | archive-url=https://web.archive.org/web/20100715200549/http://nssdc.gsfc.nasa.gov/planetary/factsheet/sunfact.html | dead-url=no }}</ref>。PH2 因為是[[公民科學]]計畫[[行星獵人]]第二批釋出資料中的42個擁有行星的候選恆星之一而受到注意<ref name=howell-2013>{{cite news | url=http://www.space.com/19233-amateurs-discover-alien-planets.html | title=Amateur Astronomers Discover 42 Alien Planets | work=Space.com | date=11 January 2013 | agency=Space.com | accessdate=January 12, 2013 | author=Howell, Elizabeth | archive-date=2013-07-03 | archive-url=https://web.archive.org/web/20130703100423/http://www.space.com/19233-amateurs-discover-alien-planets.html | dead-url=no }}</ref>。環繞 PH2 的候選天體即 '''PH2 b'''，它的假訊號機率只有0.08%，因此被確認是真實存在的行星<ref name=wang-2013>{{cite arXiv |last1=Wang |first1=Ji |authorlink= |eprint=1301.0644 |title=Planet Hunters. V. A Confirmed Jupiter-Size Planet in the Habitable Zone and 42 Planet Candidates from the Kepler Archive Data |class=astro-ph |year=January 3, 2013 |version=v1|accessdate=January 12, 2012 }}</ref>。<br />
<br />
PH2 b 是一顆位於 PH2 [[適居帶]]的木星尺寸[[類木行星]]，該行星周圍可能存在適合生命生存的[[系外衛星]]<ref name=howell-2013 />。PH2 b 的觀測確認報告於2013年1月3日送出<ref name=wang-2013 />，它是被[[波蘭]]業餘天文學家 [[Rafał Herszkowicz]] 在他的電腦上透過網際網路處理來自[[克卜勒太空望遠鏡]]的資料時發現的<ref>{{cite web | url=http://forsal.pl/artykuly/693169,polski_informatyk_rafal_herszkowicz_odkryl_nowa_planete_ph2b.html | title=Polski informatyk Rafał Herszkowicz odkrył nową planete PH2b | publisher=Forsal.pl | work= | accessdate=March 27, 2013 | archive-date=2013-06-24 | archive-url=https://web.archive.org/web/20130624014433/http://forsal.pl/artykuly/693169,polski_informatyk_rafal_herszkowicz_odkryl_nowa_planete_ph2b.html | dead-url=no }}</ref>。<br />
<br />
== 觀測歷史 ==<br />
[[Image:LombergA1024.jpg|thumb|left|340px|克卜勒太空望遠鏡在[[銀河系]]內的巡天區域。]]<br />
PH2 b 是和其他42顆行星候選天體一起在行星獵人計畫中克卜勒太空望遠鏡的資料被偵測到的，而負責分析資料的志願者分析資料中目標恆星的[[光變曲線]]以尋找可能無法被電腦程式找到的凌星訊號<ref name=wang-2013 />。先前其他志願者已經協助天文學家發現了另一顆在四重星系統內，體積相當於海王星的行星[[PH1|PH1 b]]。<br />
<br />
包含 PH2 b 在內的第二批釋出資料中的候選行星都是由公民科學家 Abe J. Hoekstra、Thomas Lee Jacobs、Daryll LaCourse、Hans Martin Schwengler、Rafal Herszkowicz 和 Mike Chopin 等人在[[耶魯大學]]天文學家的協助下發現的<ref name=wang-2013 />。除了 PH2 b 以外，其他20顆行星候選天體也是位於母恆星的適居帶內；但這些天體的假訊號機率較高，被認為訊號來源可能並非行星<ref name=wang-2013 />。 <br />
<br />
雖然行星一開始是以克卜勒的資料發現，PH2 的資料則是使用[[凱克天文台]]的儀器 HIRES 觀測並排除背景星或凌星發生時觀測到的微弱伴星、行星光譜<ref name=wang-2013 />。最終的觀測結果確認 PH2 b 的存在可信度高達99.9%<ref name=wang-2013 /><ref name=howell-2013 />。<br />
<br />
== 行星系統 ==<br />
PH2 周圍目前有一顆已經確認的[[太陽系外行星]] PH2 b，它的軌道週期282日，位於 PH2 的適居帶內，並可能有適合生命生存的衛星存在<ref name=howell-2013 />。該行星的上層大氣溫度可能在185 [[熱力學溫標|K]]（−88 °C）到303 K（30 °C）之間<ref name=wang-2013 />。部分研究人員表示 PH2 b 的衛星「可能擁有岩石核心，再加上某種溫室氣體的存在也許可以讓液態水存在於衛星表面」，從而進一步增加衛星適居可能性的希望<ref name=howell-2013 />。<br />
<br />
{{OrbitboxPlanet begin<br />
|table_ref=<ref name=wang-2013 />}}<br />
{{OrbitboxPlanet<br />
| exoplanet = b<br />
| mass = <!--Mass of the planet, in Jupiter masses (can use mass_earth instead)--><br />
| mass_earth = <!--Mass of the planet, in Earth masses (can use mass instead)--><br />
| radius = <br />
| radius_earth = {{val|10.12|0.56}}<br />
| semimajor = {{val|0.828|0.009}} <!--Semimajor axis (or distance from star) of the planet in AU--><br />
| period = {{val|282.5255|0.0010}}<br />
| eccentricity = {{val|0.41|+0.08|-0.29}}<br />
| inclination = {{val|89.83|+0.03|-0.02}} <!--Eccentricity of the planet--><br />
}}<br />
{{orbitbox end}}<br />
<br />
== 註釋 ==<br />
<br />
=== 參考資料 ===<br />
{{Reflist}}<br />
<br />
=== 腳註 ===<br />
{{reflist|group=note}}<br />
<br />
== 外部連結 ==<br />
* [https://web.archive.org/web/20131105082102/http://www.nasa.gov/mission_pages/kepler/main/index.html Kepler Mission] - [[NASA]].<br />
* [http://www.cthreepo.com/stars/viewK.php?KIC=12735740 KIC-12735740 Star on Star Finder/cthreepo] {{Webarchive|url=https://archive.today/20130215193638/http://www.cthreepo.com/stars/viewK.php?KIC=12735740 |date=2013-02-15 }}<br />
* [http://www.youtube.com/watch?v=qHvb9mewXJo Video (00:52) - Journey To Exoplanet "PH2 b"]{{Wayback|url=http://www.youtube.com/watch?v=qHvb9mewXJo |date=20160804215212 }}<br />
<br />
{{extraterrestrial life}}<br />
{{portal bar|天文學|Astrobiology}}<br />
<br />
<!--- Categories ---><br />
[[Category:G型恒星]]<br />
[[Category:天鵝座]]<br />
[[Category:行星系]]</div>
imported>Jimmy-bot