编辑“︁HAT-P-7”︁（章节）

==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"/>