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HAT-P-8b - 版本历史
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<p><b>新页面</b></p><div>{{Infobox Planet<br />
| bgcolour = #A0B0FF<br />
| image =<br />
| caption =<br />
| name = HAT-P-8b<br />
| parent star = yes<br />
| star = HAT-P-8<br />
| planet = <br />
| constell = 飞马座<br />
| distance = 750 ± 50光年<br />
| RA = {{RA|22|52|09.862}}<br />
| DEC = {{DEC|+35|26|49.59}}<br />
| class = <br />
| discovery = yes<br />
| discovery_ref = <br />
| discoverer = 匈牙利自动望远镜网络计划<br />
| discovered = 2008年12月5日<br />
| discovery_method = 凌星观测法<br />
| semimajor = 0.0487 ± 0.00026天文单位<br />
| semiminor = <br />
| orbital_circ = <br />
| eccentricity = 0<br />
| period = 3.07632 ± 0.000004地球日<br />
| inclination = <br />
| long_periastron = 0.21°<br />
| time_periastron = <br />
| semi-amp =<br />
| physical_characteristics = yes<br />
| mean_radius = 1.5{{±|0.08|0.06}}[[木星|''R''<sub>''J''</sub>]]<br />
| density = <br />
| surface_grav = <br />
| mass = 1.52{{±|0.18|0.16}}[[木星质量|''M''<sub>''J''</sub>]]<br />
| minimum_mass =<br />
| single_temperature = <br />
| magnitude =<br />
}}<br />
<br />
'''HAT-P-8b'''是一颗位于[[飞马座]]，距离地球约750光年的系外行星，其母星为10等星[[HAT-P-8|GSC 02757-01152]]。该行星于2008年12月5日被发现。尽管其被命名为HAT-P-8b，但它实际上是[[匈牙利自动望远镜网络计划]]发现的第11颗系外行星。该行星质量约为[[木星]]的1.5倍，半径也比木星大50%。由于该行星是一颗典型的[[凌星行星]]，科学家得以探测到了该行星的轨道倾角，利用该数据进一步得出了它的准确质量。该行星是一颗巨行星，其轨道十分接近于中央恒星——大约只有地球至太阳距离的2/41，如此近的距离使其表面温度极高，所以该行星也属于[[热木星]]类型。其轨道周期为3[[地球日]]1小时49分54秒。<ref name="Latham2009">{{cite journal | title=Discovery of a Transiting Planet and Eight Eclipsing Binaries in HATNet Field G205 | url=https://archive.org/details/sim_astrophysical-journal_2009-10-20_704_2/page/1106 | last1=Latham | first1=David W. | last2=Bakos | first2=Gáspár Á. | last3=Torres | first3=Guillermo | last4=Stefanik | first4=Robert P. | last5=Noyes | first5=Robert W. | last6=Kovács | first6=Géza | last7=Pál1 | first7=András | last8=Marcy | first8=Geoffrey W. | last9=Fischer | first9=Debra A. | display-authors=1 | journal=The Astrophysical Journal | volume=704 | issue=2 | pages=1107–1119 | year=2009 | arxiv=0812.1161 | bibcode=2009ApJ...704.1107L | doi=10.1088/0004-637X/704/2/1107 | s2cid=120615043 }}</ref><br />
<br />
== 参见 ==<br />
*[[匈牙利自动望远镜网络计划]]<br />
<br />
== 参考文献 ==<br />
{{Reflist}}<br />
<br />
== 外部链接 ==<br />
* {{cite web | url=http://media4.obspm.fr/exoplanets/base/planete.php?etoile=HAT-P-8&planete=b | title=HAT-P-8 b | work=Exoplanets | access-date=2009-07-10 | archive-url=https://www.webcitation.org/67ahRTn2v?url=http://media4.obspm.fr/exoplanets/base/planete.php?etoile=HAT-P-8 | archive-date=2012-05-11 | dead-url=yes }}<br />
{{Sky|22|52|09.862|+|35|26|49.59|750}}<br />
{{系外行星小作品}}<br />
<br />
[[Category:太阳系外行星]]<br />
[[Category:2008年发现的系外行星]]<br />
[[Category:类木行星]]<br />
[[Category:热木星]]<br />
[[Category:凌星行星]]<br />
[[Category:飞马座]]</div>
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