imported>凌雲：/* 参考资料 */ 增加或調整分類

2023-03-08T16:31:32Z

参考资料：增加或調整分類

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{{Starbox begin
| name = HAT-P-7
}}
{{Starbox observe
| epoch = J2000
| constell = [[天鹅座]]
| ra = {{RA|19|28|59.353}}<ref name="Zacharias2013"/>
| dec = {{DEC|+47|58|10.24}}<ref name="Zacharias2013"/>
| appmag_v = 10.46<ref name="SIMBAD"/>
}}
{{Starbox character
| class = F8<ref name="SIMBAD"/>
| appmag_1_passband = B
| appmag_1 = ~10.90<ref name="SIMBAD"/>
| appmag_2_passband = V
| appmag_2 = ~10.46<ref name="SIMBAD"/>
| appmag_3_passband = J
| appmag_3 = 9.555 ± 0.030<ref name="SIMBAD"/>
| appmag_4_passband = H
| appmag_4 = 9.344 ± 0.029<ref name="SIMBAD"/>
| appmag_5_passband = K
| appmag_5 = 9.334 ± 0.018<ref name="SIMBAD"/>
| variable =
}}
{{Starbox astrometry
| radial_v =
| prop_mo_ra = –17.7 ± 0.9<ref name="Zacharias2013"/>
| prop_mo_dec = 9.9 ± 1.0<ref name="Zacharias2013"/>
| dist_ly = 1044 {{±|163|130}}
| dist_pc = 320 {{±|50|40}}
}}
{{Starbox detail
| mass = 1.47{{±|0.8|0.5}}
| radius = 1.84{{±|0.23|0.11}}
| luminosity =
| gravity = 4.02 ± 0.01<ref name="Torres2012"/>
| temperature = 6441 ± 69<ref name="Torres2012"/>
| metal_fe = 0.15 ± 0.08<ref name="Torres2012"/>
| rotational_velocity = 5.0 ± 1.2<ref name="Torres2012"/>
| age_gyr =
}}
{{Starbox catalog
| names = GSC 03547-01402、{{KIC|10666592}}、KOI 2、[[2微米全天巡天|2MASS]] J19285935+4758102、[[第谷第二星表|TYC]] 3547-1402-1<ref name="SIMBAD"/>
}}
{{Starbox reference
| EPE = HAT-P-7
| Simbad = GSC03547-01402
}}
{{Starbox end}}

'''HAT-P-7'''，是一颗位于[[天鹅座]]的恒星，距离地球1044[[光年]]，[[视星等]]为10.5，[[肉眼|裸眼]]不能看到它，但条件良好的地方可以通过小型望远镜找到它<ref name="SIMBAD">{{cite web
| url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=GSC03547-01402
| title=SIMBAD query result: NAME HAT-P-7 -- Star
| publisher=[[Centre de Données astronomiques de Strasbourg]]
| accessdate=2009-04-22
| archive-date=2020-10-08
| archive-url=https://web.archive.org/web/20201008044457/http://simbad.u-strasbg.fr/simbad/sim-id?Ident=GSC03547-01402
| dead-url=no
}}</ref>。

==恆星狀況==
HAT-P-7是一個[[主序星|主序]][[黃白矮星]]，其[[恒星光譜]]分類為F8。其質量為[[太陽質量]]的1.47倍，而半徑則為[[太陽|太陽半徑]]的1.84倍。這代表开普勒7比太陽重47%，並且比太陽闊84%。這顆星的表面重力為4.02 ± 0.01 cgs。<ref>{{cite web
| url=http://media4.obspm.fr/exoplanets/base/etoile.php?nom=HAT-P-7
| title=HAT-P-7
| work=Exoplanets
| accessdate=2009-05-03
| archive-url=https://web.archive.org/web/20160303175822/http://media4.obspm.fr/exoplanets/base/etoile.php?nom=HAT-P-7
| archive-date=2016-03-03
| dead-url=yes
}}</ref>這顆星的估計[[金屬量]]為[Fe/H] = 0.15 ± 0.08，而[[有效溫度]]則為6441 ± 69 [[開氏溫標|K]]。其自轉速度為5.0 ± 1.2 km/s。<ref name="Torres2012"/> 相比而言，身為[[黃矮星]]的[[太陽]]，其[[恆星光譜]]類型為G2V，自轉速度為2 km/s<ref name=sse>{{cite web
|title=Solar System Exploration: Planets: Sun: Facts & Figures
|url=http://solarsystem.nasa.gov/planets/profile.cfm?Object=Sun&Display=Facts&System=Metric
|archiveurl=https://web.archive.org/web/20080102034758/http://solarsystem.nasa.gov/planets/profile.cfm?Object=Sun&Display=Facts&System=Metric
|archivedate=2008-01-02
|publisher=[[NASA]]
|deadurl=yes
|accessdate=2013-12-07
}}</ref>，有效溫度僅為5778 K<ref>{{cite web |url=http://nssdc.gsfc.nasa.gov/planetary/factsheet/sunfact.html |title=Sun Fact Sheet |author=David Williams |date=1 September 2004 |work=[[Goddard Space Flight Center]] |publisher=[[NASA]] |accessdate=27 February 2011 |archive-date=2015-12-01 |archive-url=https://web.archive.org/web/20151201201737/http://nssdc.gsfc.nasa.gov/planetary/factsheet/sunfact.html |dead-url=no }}</ref>，金屬量為[Fe/H] = 0.0122。<ref>
{{cite journal
|last=Asplund|first=M.
|coauthors=N. Grevesse and A. J. Sauval
|year=2006
|title=The new solar abundances - Part I: the observations
|journal=Communications in Asteroseismology
|volume=147 |pages=76–79
|bibcode=2006CoAst.147...76A
|doi=10.1553/cia147s76
}}</ref>

這顆恆星的[[視星等]]為10.46，代表人類肉眼是看不見這顆星的，必須以望遠鏡觀測。這顆恆星估計距離地球1044光年（320秒差距）。<ref name="SIMBAD"/>

==行星系統==
[[File:Exoplanet Comparison HAT-P-7 b.png|thumb|left|HAT-P-7b與木星的大小比較]]
HAT-P-7至今已知擁有一顆行星HAT-P-7b。這個行星是於2008年3月6日被[[匈牙利自动望远镜网络计划]]發現的，其發現方法為凌日法。<ref name="Pál2008"/>

HAT-P-7b的半長軸只有0.0377 ± 0.0005 AU，顯示该行星的轨道十分接近其母星。而由于與恒星的加热，所以该行星的体积比[[木星]]大得多，並因此被歸類為[[熱木星]]。该行星面向恒星的一面的温度能达2730 K。该行星的[[軌道周期]]為2.2047299天，而[[軌道傾角]]則是 85.7°。HAT-P-7b的質量為1.776 [[木星质量]]，而半徑則為1.363+0.195[[木星|木星半徑]]。其密度為930 kg m<sup>-3</sup>，而表面重力則為24.75 m/s²。<ref name=KeplerScience>{{cite journal|title=Kepler’s Optical Phase Curve of the Exoplanet HAT-P-7b|journal=Science|date=2009-08-07|first=W.J.|last=Borucki|coauthors=D. Koch,1 J. Jenkins, D. Sasselov, R. Gilliland, N. Batalha, D. W. Latham,3 D. Caldwell, G. Basri, T. Brown,7 [[Jørgen Christensen-Dalsgaard|J. Christensen-Dalsgaard]], W. D. Cochran, E. DeVore, E. Dunham, A. K. Dupree, T. Gautier, J. Geary, A. Gould, S. Howell, H. Kjeldsen, J. Lissauer, G. Marcy, S. Meibom, D. Morrison, J. Tarter|volume=325|issue=5941|pages=709|doi=10.1126/science.1178312|url=http://www.sciencemag.org/cgi/content/full/sci;325/5941/709|format=|accessdate=2009-08-07|pmid=19661420|bibcode=2009Sci...325..709B|archive-date=2009-08-10|archive-url=https://web.archive.org/web/20090810204938/http://www.sciencemag.org/cgi/content/full/sci;325/5941/709|dead-url=no}}</ref>

{{OrbitboxPlanet begin}}
{{OrbitboxPlanet
| exoplanet = [[HAT-P-7b|b]]
| mass = 1.776 {{±|0.077|0.049}}
| period = 2.2047299 ± (4×10<sup>-6</sup>)
| semimajor = 0.0377 ± 0.0005
| eccentricity = 0
| radius = 1.421
}}
{{Orbitbox end}}

== 相关条目 ==
* [[確定存在的太陽系外行星列表]]
* [[匈牙利自动望远镜网络计划]]

== 参考资料 ==
{{Reflist|refs=

<ref name="Pál2008">{{cite journal | title=HAT-P-7b: An Extremely Hot Massive Planet Transiting a Bright Star in the Kepler Field | url=http://iopscience.iop.org/0004-637X/680/2/1450/fulltext/ | last1=Pál | first1=A. | last2=Bakos | first2=G. Á. | last3=Torres | first3=G. | last4=Noyes | first4=R. W. | last5=Latham | first5=D. W. | last6=Kovács | first6=Géza | last7=Marcy | first7=G. W. | last8=Fischer | first8=D. A. | last9=Butler | first9=R. P. | last10=Sasselov | first10=D. D. | last11=Sipőcz | first11=B. | last12=Esquerdo | first12=G. A. | last13=Kovács | first13=Gábor | last14=Stefanik | first14=R. | last15=Lázár | first15=J. | last16=Papp | first16=I. | last17=Sári | first17=P. | display-authors=1 | journal=The Astrophysical Journal | volume=680 | issue=2 | pages=1450–1456 | year=2008 | arxiv=0803.0746 | bibcode=2008ApJ...680.1450P | doi=10.1086/588010 | access-date=2013-12-07 | archive-date=2019-12-07 | archive-url=https://web.archive.org/web/20191207150003/http://iopscience.iop.org/0004-637X/680/2/1450/fulltext/ | dead-url=no }}</ref>

<ref name="Torres2012">{{cite journal | title=Improved Spectroscopic Parameters for Transiting Planet Hosts | url=http://iopscience.iop.org/0004-637X/757/2/161/fulltext/ | last1=Torres | first1=Guillermo | last2=Fischer | first2=Debra A. | last3=Sozzetti | first3=Alessandro | last4=Buchhave | first4=Lars A. | last5=Winn | first5=Joshua N. | last6=Holman | first6=Matthew J. | last7=Carter | first7=Joshua A. | display-authors=1 | journal=The Astrophysical Journal | volume=757 | issue=2 | at=161 | year=2012 | arxiv=1208.1268 | bibcode=2012ApJ...757..161T | doi=10.1088/0004-637X/757/2/161 }}</ref>

<ref name="Zacharias2013">{{cite journal | title=The Fourth US Naval Observatory CCD Astrograph Catalog (UCAC4) | last1=Zacharias | first1=N. | last2=Finch | first2=C. T. | last3=Girard | first3=T. M. | last4=Henden | first4=A. | last5=Bartlett | first5=J. L. | last6=Monet | first6=D. G. | last7=Zacharias | first7=M. I. | display-authors=1 | journal=The Astronomical Journal | year=2013 | volume=145 | issue=2 | at=44 | arxiv=1212.6182 | bibcode=2013AJ....145...44Z | doi=10.1088/0004-6256/145/2/44 }}[http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=I/322A&UCAC4===690-068273 Vizier catalog entry] {{Wayback|url=http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=I%2F322A&UCAC4=%3D%3D690-068273 |date=20201103220001 }}</ref>

}}

{{Sky|19|28|59|+|47|58|10}}

[[Category:天鹅座]]
[[Category:太阳系外行星]]
[[Category:行星凌變星]]
[[Category:克卜勒感興趣天體| ]]

HAT-P-7 - 版本历史

imported>凌雲：​/* 参考资料 */ 增加或調整分類

imported>凌雲：/* 参考资料 */ 增加或調整分類