hour angle

Noun
  1. The angular distance along the celestial equator from the observer's meridian to the hour circle of a given celestial body (synset 108604064)
    is a type of: distance - the property created by the space between two objects or points
  2. (astronomy) the angular distance of a celestial point measured westward along the celestial equator from the zenith crossing;
    The right ascension for an observer at a particular location and time of day (synset 113911476)
    referred to in: astronomy, uranology - the branch of physics that studies celestial bodies and the universe as a whole
    is a type of: angular distance - the angular separation between two objects as perceived by an observer
    same as: ha

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