https://arolstar52-zhtest.hf.space/index.php?action=history&feed=atom&title=HD_154345
HD 154345 - 版本历史
2026-07-19T20:19:20Z
本wiki上该页面的版本历史
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https://arolstar52-zhtest.hf.space/index.php?title=HD_154345&diff=1835116&oldid=prev
imported>Jimmy-bot：机器人: 尚未清空的已重定向分类（Cat:黃矮星→Cat:G型主序星）
2024-06-25T11:31:02Z
<p>机器人: 尚未清空的已重定向分类（<a href="/index.php?title=Cat:%E9%BB%83%E7%9F%AE%E6%98%9F&action=edit&redlink=1" class="new" title="Cat:黃矮星（页面不存在）">Cat:黃矮星</a>→<a href="/index.php?title=Cat:G%E5%9E%8B%E4%B8%BB%E5%BA%8F%E6%98%9F&action=edit&redlink=1" class="new" title="Cat:G型主序星（页面不存在）">Cat:G型主序星</a>）</p>
<p><b>新页面</b></p><div>{{Starbox begin <br />
| name = HD 154345<br />
}} <br />
{{Starbox observe <br />
| epoch = J2000.0<br />
| constell = [[武仙座]]<br />
| ra = {{RA|17|02|36.40}}<br />
| dec = {{DEC|+47|04|54.77}}<br />
| appmag_v = +6.74<br />
}} <br />
{{Starbox character <br />
| class = G8V<br />
| b-v = 0.73<br />
| u-b = 0.27<br />
| variable = none<br />
}} <br />
{{Starbox astrometry <br />
| radial_v = -46.2 <br />
| prop_mo_ra = 123.55<br />
| prop_mo_dec = 854.71<br />
| gal_lat = +37.6635<br />
| gal_lon = 073.0223<br />
| parallax = 55.37<br />
| p_error = 0.55<br />
| dist_ly = 58.91 ± 0.59<br />
| dist_pc = 18.06 ± 0.18<br />
| absmag_v = +5.46<br />
}} <br />
{{Starbox detail <br />
| age = 4.92 ± 4.48 × 10<sup>9</sup><br />
| metal = -0.105 ± 0.03<br />
| mass = 0.88<br />
| radius = <br />
| gravity = <br />
| rotation = {{nowrap|27.8 ± 1.7 days}}<ref name=mnras408_3_1666>{{citation | display-authors=1<br />
| last1=Simpson | first1=E. K. | last2=Baliunas | first2=S. L.<br />
| last3=Henry | first3=G. W. | last4=Watson | first4=C. A.<br />
| title=Rotation periods of exoplanet host stars<br />
| journal=Monthly Notices of the Royal Astronomical Society<br />
| volume=408 | issue=3 | pages=1666–1679<br />
| doi=10.1111/j.1365-2966.2010.17230.x<br />
| bibcode=2010MNRAS.408.1666S |date=November 2010}}</ref><br />
| luminosity = 0.568<br />
| temperature = 5468 ± 44<br />
}} <br />
{{Starbox catalog <br />
| names = HD 154345, BD+47º2420, GC 23011, GCRV 9834, Gliese 651, Gl 651, GJ 651, HIP 83389, SAO 46452<br />
}} <br />
{{Starbox end}}<br />
'''HD 154345'''是一顆位於[[武仙座]]的[[黃矮星]]，肉眼不可見，但可使用[[雙筒望遠鏡]]觀測到。<br />
<br />
==行星系統==<br />
2006年以[[徑向速度]]法發現該恆星旁有一顆長周期的[[系外行星]] [[HD 154345 b]]，相關論文於2007年5月發表<ref name="Wright2007"/>。根據觀測結果排除了該恆星軌道內部存在質量下限大於0.3倍木星質量的行星存在。該行星系統的[[適居帶]]中心在0.754天文單位<ref>以恆星光度的平方根計算</ref>。假設該系統的方位是和地球觀測者視線垂直（傾斜角約90°，所以真實質量大約相同於木星），該行星就不會更接近系統的適居帶擾亂系統中可能存在的類地球行星軌道。<br />
<br />
{{OrbitboxPlanet begin<br />
| table_ref = <ref name="Wright2008"/><br />
| period_unit=year<br />
}}<br />
{{OrbitboxPlanet<br />
| exoplanet = [[HD 154345 b|b]]<br />
| mass = >0.947 ± 0.090 <br />
| period = 9.15 ± 0.26<br />
| semimajor = 4.19 ± 0.26 <br />
| eccentricity = 0.044 ± 0.046 <br />
}} <br />
{{Orbitbox end}}<br />
<br />
==參考資料==<br />
{{Reflist|colwidth=30em|refs=<br />
<br />
<ref name="Wright2007">{{cite journal | title=Four New Exoplanets and Hints of Additional Substellar Companions to Exoplanet Host Stars | url=http://www.iop.org/EJ/article/0004-637X/657/1/533/65907.html | last1=Wright | first1=J. T. | last2=Marcy | first2=G. W. | last3=Fischer | first3=D. A | last4=Butler | first4=R. P. | last5=Vogt | first5=S. S. | last6=Tinney | first6=C. G. | last7=Jones | first7=H. R. A. | last8=Carter | first8=B. D. | last9=Johnson | first9=J. A. | display-authors=1 | journal=The Astrophysical Journal | year=2007 | volume=657 | issue=1 | pages=533–545 | arxiv=astro-ph/0611658 | bibcode=2007ApJ...657..533W | doi=10.1086/510553 | access-date=2012-07-17 | archive-date=2012-02-16 | archive-url=https://www.webcitation.org/65VLNI991?url=http://iopscience.iop.org/0004-637X/657/1/533/fulltext/ | dead-url=no }}</ref><br />
<br />
<ref name="Wright2008"> {{cite journal | title=The Jupiter Twin HD 154345b | url=http://iopscience.iop.org/1538-4357/683/1/L63/fulltext/ | last1=Wright | first1=J. T. | last2=Marcy | first2=G. W. | last3=Butler | first3=R. P. | last4=Vogt | first4=S. S. | last5=Henry | first5=G. W. | last6=Isaacson | first6=H. | last7=Howard | first7=A. W. | display-authors=1 | journal=The Astrophysical Journal Letters | year=2008 | volume=683 | issue=1 | pages=L63–L66 | arxiv=0802.1731 | bibcode=2008ApJ...683L..63W | doi=10.1086/587461 }}</ref><br />
<br />
}}<br />
<br />
==外部連結==<br />
* [http://exoplanet.eu/star.php?st=HD+154345 '''The Extrasolar Planets Encyclopedia:''' HD 154345] {{Wayback|url=http://exoplanet.eu/star.php?st=HD+154345 |date=20120505094154 }}<br />
* [http://simbad.u-strasbg.fr/simbad/sim-id?protocol=html&Ident=HD+154345&NbIdent=1&Radius=10&Radius.unit=arcmin&submit=submit+id '''SIMBAD:''' HD 154345] {{Wayback|url=http://simbad.u-strasbg.fr/simbad/sim-id?protocol=html&Ident=HD+154345&NbIdent=1&Radius=10&Radius.unit=arcmin&submit=submit+id |date=20160312102046 }}<br />
<br />
{{Sky|17|02|36.40|+|47|04|54.77|58.91}}<br />
{{DEFAULTSORT:HD 154345}}<br />
[[Category:G型主序星]]<br />
[[Category:HD和HDE天體|154345]]<br />
[[Category:格利泽和GJ天体|0651]]<br />
[[Category:武仙座]]<br />
[[Category:行星系]]</div>
imported>Jimmy-bot