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英英字典: hour_angle




Overview of noun hour_angle

The noun hour angle has 2 senses


  • hour angle -- (the angular distance along the celestial equator from the observer's meridian to the hour circle of a given celestial body)

  • 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)

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