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hour angle

n.
1.the angular distance along the celestial equator from the observer's meridian to the hour circle of a given celestial body
2.(astronomy) the angular distance of a celestial point measured westward along the celestial equator from the zenith crossing

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    Idiom of the Day

    skip it
    to forget about something
    "Skip it," I said when my friend forgot to bring me the phone number many times.



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