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n. Abbr. ha
The angular distance, measured westward along the celestial equator, between the celestial meridian of the observer and the hour circle passing through a celestial body.
(Astronomy) the angular distance along the celestial equator from the meridian of the observer to the hour circle of a particular celestial body
the angle, measured westward through 360°, between the celestial meridian of an observer and the hour circle of a celestial body.
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|Noun||1.||hour angle - the angular distance along the celestial equator from the observer's meridian to the hour circle of a given celestial body|
distance - the property created by the space between two objects or points
|2.||hour angle - (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|
astronomy, uranology - the branch of physics that studies celestial bodies and the universe as a whole
angular distance - the angular separation between two objects as perceived by an observer; "he recorded angular distances between the stars"