1.  hour angle(n = noun.location) - the angular distance along the celestial equator from the observer's meridian to the hour circle of a given celestial body;
is a kind of distance

2.  hour angle(n = noun.shape) ha - (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;
is a kind of angular distance

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