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Thread: a nightmare scenario for the IAU planet definition

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    Wink a nightmare scenario for the IAU planet definition



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    Default Re: a nightmare scenario for the IAU planet definition

    Serves them right for demoting Pluto.
    Dave Hunt
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    Default Re: a nightmare scenario for the IAU planet definition

    Poor Mr. Beelzebrown, first his "hypothetical Planet X" takes a hit and now this. Beautiful!
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    Default Re: a nightmare scenario for the IAU planet definition

    Hmmm...perhaps that alphabetical size classification scheme I posted here ages would be better than IAU's definitions...

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    Default Re: a nightmare scenario for the IAU planet definition

    Quote Originally Posted by ThinkerX View Post
    Hmmm...perhaps that alphabetical size classification scheme I posted here ages would be better than IAU's definitions...
    Size has the same disadvantages as "orbiting a star" and "clearing its orbit". It's only geometric and not based on intrinsic physical properties.

    Here's a better definition described
    https://phys.org/news/2017-02-geophy...efinition.html
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