hour-angle

英 ['aʊər'æŋɡl] 美 ['aʊər'æŋɡl]

• n. 时角

英英释义

名词 hour angle:

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; the right ascension for an observer at a particular location and time of day