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Thread: forming Earth size short period planets

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    not_Fritz_Argelander's Avatar
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    Default forming Earth size short period planets



    Past items italicized. Scopes: Refractors: Orion ST80 (mods for white light solar), SV ED80 f7, Orion and SW 80 and 120 ED doublets, Orion 120 f8.3, Tasco 30x30, Edmund 40; Newtonians: AT 8”f4, OC 8”f6.3, Z12 f5, self made 6” f9, Orion XX14i; Catadioptrics: VMC110L, Intes MK66, Orion 102 MakCas f12.7, Celestron 9.25 SCT and 9.25 Edge. EPs: KK Fujiyama Orthoscopics, 2x Vixen NPLs (40-6mm) and BCOs, Baader Mark IV zooms, TV Panoptics, Delos, TV Nagler, ES100s. Mounts: Orion Sirius EQG, Star Seeker III, Celestron CG5, Vixen Porta II, Losmandy G11

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    Default Re: forming Earth size short period planets

    Why should orbital chaos respect planetary size? High eccentricity orbits abound in extra-solar planetary systems.

    Perhaps the worlds were more or less earth sized to begin with and migrated inward.
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    Default Re: forming Earth size short period planets

    Quote Originally Posted by ThinkerX View Post
    Why should orbital chaos respect planetary size? High eccentricity orbits abound in extra-solar planetary systems.
    Energy is minimized by larger bodies becoming more tightly bound gravitationally. So that is favored statistically.

    Perhaps the worlds were more or less earth sized to begin with and migrated inward.
    Perhaps, but not favored energetically or statistically.
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    Past items italicized. Scopes: Refractors: Orion ST80 (mods for white light solar), SV ED80 f7, Orion and SW 80 and 120 ED doublets, Orion 120 f8.3, Tasco 30x30, Edmund 40; Newtonians: AT 8”f4, OC 8”f6.3, Z12 f5, self made 6” f9, Orion XX14i; Catadioptrics: VMC110L, Intes MK66, Orion 102 MakCas f12.7, Celestron 9.25 SCT and 9.25 Edge. EPs: KK Fujiyama Orthoscopics, 2x Vixen NPLs (40-6mm) and BCOs, Baader Mark IV zooms, TV Panoptics, Delos, TV Nagler, ES100s. Mounts: Orion Sirius EQG, Star Seeker III, Celestron CG5, Vixen Porta II, Losmandy G11

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    Default Re: forming Earth size short period planets

    Thank for this most interesting link.
    Clear skies.
    Peter.

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