An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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Barycentric Coordinate Time (TCB)
  زمان ِ همارا‌ی ِ گرانیگاهی  
zamân-e hamârâ-ye gerânigâhi
Fr.: temps-coordonnée barycentrique (TCB)  

A → coordinate time having its spatial origin at the solar system barycenter. It is intended to be used as the independent variable of time for all calculations pertaining to orbits of planets, asteroids, comets, and interplanetary spacecraft in the solar system. → Barycentric Dynamical Time (IDB).

Etymology (EN): → barycenter; → coordinate; → time.