翻译
  • 简明
  • hour angle

    • 英 [ˈauə ˈæŋɡl]
    • 美 [aʊr ˈæŋɡəl]

    释义

    • 时角,相位角
  • 英英释义

    Noun

    • 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
  • 行业词典

    • 天文学

      时角   过天球上一点的赤经圈与子午圈所交的球面角。   

    • 航海科技

      时角   又称 :时角(HA )