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Thread: earth moon relationship

  1. #1 earth moon relationship 
    Forum Radioactive Isotope sculptor's Avatar
    Join Date
    Apr 2012
    If something struck the earth long ago tilting it's axis in relation to the orbital plane.
    Would the then much closer moon have the power to shift the axis back to it's current wobble range?

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  3. #2  
    precious sir ir r aj's Avatar
    Join Date
    Oct 2013
    for beginners
    The earth "wobbles" like a toy top. Roughly every 26000 years it makes a full rotation.

    While Polaris is currently near the center of the north celestial pole, that point is constantly moving and will trace an arc eventually so that Vega will be at the celestial north pole.

    The current angle of the "wobble is 23.5 degrees but it varies anywhere from 21.5 to 24.5 degrees over a 41000 year period (figures aren't exact but rough).

    Here's a guy with more time explaining it in detail.

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