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Thread: AAS on Trappist-1

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    Default AAS on Trappist-1



    pikaia, helicon64, Solrian and 5 others like this.
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    Default Re: AAS on Trappist-1

    Very interesting. It's surprising that it's not much bigger than Jupiter. I wonder what its diameter was before it switched on and became a star?
    Jim

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    Default Re: AAS on Trappist-1

    Quote Originally Posted by Solrian View Post
    Very interesting. It's surprising that it's not much bigger than Jupiter. I wonder what its diameter was before it switched on and became a star?
    As big as you like. The operative concept is the Hayashi track. In the H-R diagram it is the pre main sequence (pre switch on) track followed in a temperature luminosity graph. The hayashi track followed by a low mass star is a near vertical drop at roughly the same temperature.

    https://en.wikipedia.org/wiki/Hayash...ion_tracks.svg
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