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Thread: new study on habitable zones for exoplanets

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    Default new study on habitable zones for exoplanets



    chas53, Hawk65, Solrian and 2 others like this.

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    Default Re: new study on habitable zones for exoplanets

    Extraordinary. Thank you.
    Solrian aka Jim

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    Default Re: new study on habitable zones for exoplanets

    Gah.

    My project writ small, because I realized Hip was missing a huge number of nearby stellar analogs. So I tried to find the 'missing' solar analogs by other means. Hence my myopic focus on main sequence stars of F5 to M0-2 dredged from the ASCC. Might have added UCAC4 to the mix, because I...really strongly suspect I missed a *lot* of nearby K5-M0 stars, but with Gaia due soon, no point.

    Celesta - another site I used to frequent, now defunct, was kind of sort of based around Celesta, probably an older version.

    This project sounds like a clone of Tarter and Turnbull's 'HabCat' from the early 2000's, though they used the older, less accurate version of Hip. (SETI) That catalog is very hard to find.

    They made an expanded list from the Tycho data, couple hundred thousand additional candidates, even more impossible to find than the first version. As the ASCC basically is Tycho + Hip + 2MASS and some other stuff, I'd hoped to duplicate, or at least verify, this second effort. Better data and all. Didn't work, in part because even with the new data, the quality issues were that bad. My final tally was around 1/3rd of theirs.

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