An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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Main Ring
  حلقه‌ی ِ فریست  
halqe-ye farist
Fr.: anneau principal  

A thin strand of material encircling Jupiter;
the main component in → Jupiter’s ring system of three parts. The diffuse innermost boundary begins at approximately 123,000 km. The main ring’s outer radius is found to be at 128,940 km,

See also: → main; → ring.