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An eccentric Jupiter is a Jovian planet that orbits its star in an eccentric orbit.〔 Note: this study treats eccentric Jupiters as giant planets having an orbital eccentricity of 0.1 or greater.〕 Eccentric Jupiters may probably disqualify a planetary system from having Earth-like planets in it because a massive gas giant with an eccentric orbit may remove all Earth mass planets from the habitable zone. To date, it appears that approximately 7% of all stars (half of the known planetary systems) have an eccentric Jupiter (e > 0.1), making these planets more common than Hot Jupiters. Out of the more than 200 extrasolar planet discoveries (as of 2006), 15 planets have high eccentricities (e > 0.6).〔 The typical exoplanet with an orbital period greater than 5 days has a median eccentricity of 0.23. Possible habitable zone planets near eccentric Jupiters: ==See also== *Extrasolar planet 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Eccentric Jupiter」の詳細全文を読む スポンサード リンク
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