An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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solar radius
  شعاع ِ خورشید  
šo'â'-e xoršid
Fr.: rayon solaire  

A unit of length, representing the radius of the → Sun, used to express the size of stars in astrophysics. It is equivalent to: 695,700 km, 0.00465047 → astronomical units, 7.35355 &times 10-8 → light-years, and 2.32061 → light-seconds.

See also: → solar; → radius.