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moons that orbit eccentric extrasolar gas giants.
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[[File:PlanetQuest-HD96167b.png|250px|thumb|right|Eccentric Jupiter [[HD 96167 b]] has a comet-like orbit.]] |
[[File:PlanetQuest-HD96167b.png|250px|thumb|right|Eccentric Jupiter [[HD 96167 b]] has a comet-like orbit.]] |
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An '''eccentric Jupiter''' is a [[Jovian planet]] that orbits its [[star]] in an [[Orbital eccentricity|eccentric]] orbit.<ref name=raymond_et_al2004>{{cite journal |author1=Raymond, Sean N. |author2=Quinn, Thomas |author3=Lunine, Jonathan I. | title=Making other earths: dynamical simulations of terrestrial planet formation and water delivery | journal=Icarus | volume=168 | issue=1 | pages=1–17 |date=March 2004 | doi=10.1016/j.icarus.2003.11.019 | bibcode=2004Icar..168....1R |arxiv = astro-ph/0308159 }} Note: this study treats eccentric Jupiters as giant planets having an orbital eccentricity of 0.1 or greater.</ref> Eccentric Jupiters may probably disqualify a [[planetary system]] from having [[Earth analog|Earth-like planets]] (not habitable [[exomoons]]) in it because a massive [[gas giant]] with an eccentric orbit may remove all [[Earth]] mass planets from the [[habitable zone]]. |
An '''eccentric Jupiter''' is a [[Jovian planet]] that orbits its [[star]] in an [[Orbital eccentricity|eccentric]] orbit.<ref name=raymond_et_al2004>{{cite journal |author1=Raymond, Sean N. |author2=Quinn, Thomas |author3=Lunine, Jonathan I. | title=Making other earths: dynamical simulations of terrestrial planet formation and water delivery | journal=Icarus | volume=168 | issue=1 | pages=1–17 |date=March 2004 | doi=10.1016/j.icarus.2003.11.019 | bibcode=2004Icar..168....1R |arxiv = astro-ph/0308159 }} Note: this study treats eccentric Jupiters as giant planets having an orbital eccentricity of 0.1 or greater.</ref> Eccentric Jupiters may probably disqualify a [[planetary system]] from having [[Earth analog|Earth-like planets]] (not habitable [[Exomoon#Habitability | exomoons]]) in it because a massive [[gas giant]] with an eccentric orbit may remove all [[Earth]] mass planets from the [[habitable zone]]. |
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To date, it appears that approximately 7% of all [[star]]s (half of the known planetary systems) have an eccentric Jupiter (e > 0.1), making these planets more common than [[Hot Jupiter]]s.{{Citation needed|date=April 2008}} |
To date, it appears that approximately 7% of all [[star]]s (half of the known planetary systems) have an eccentric Jupiter (e > 0.1), making these planets more common than [[Hot Jupiter]]s.{{Citation needed|date=April 2008}} |
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Aneccentric Jupiter is a Jovian planet that orbits its star in an eccentric orbit.[1] Eccentric Jupiters may probably disqualify a planetary system from having Earth-like planets (not habitable exomoons) 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.[citation needed]
Out of the more than 200 extrasolar planet discoveries (as of 2006), 15 planets have high eccentricities (e > 0.6).[2]
The typical exoplanet with an orbital period greater than 5 days has a median eccentricity of 0.23.[3]
Possible habitable zone planets near eccentric Jupiters:[2]
| Planet | SMA | ecc | MJ | Notes |
|---|---|---|---|---|
| HD 3651 b | 0.29 | 0.61 | 0.22 | Might allow for planets at or beyond 0.6 AU |
| HD 37605 b | 0.26 | 0.73 | 2.84 | Might allow for planets at or beyond 0.8 AU |
| HD 45350 b | 1.92 | 0.77 | 1.79 | Restricted stable orbits to the innermost 0.2 AU |
| HD 80606 b | 0.45 | 0.93 | 4.0 | Only beyond 1.75 AU did test particles remain |
| HD 20782 b | 1.381 | 0.97 | 2.620 | |
| HD 89744 b | 0.93 | 0.67 | 8.58 | No terrestrial planets in the habitable zone |
| 16 Cygni Bb | 1.68 | 0.68 | 1.68 | No terrestrial planets in the habitable zone |
{{cite journal}}: CS1 maint: multiple names: authors list (link)
