Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun hour_angle

2 senses of hour angle

Sense 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)

Sense 2
hour angle, 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)
       => angular distance -- (the angular separation between two objects as perceived by an observer; "he recorded angular distances between the stars")