An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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surface gravity
  گرانی ِ رویه، ~ رویه‌ای  
gerâni-ye ruyé, ~ ruye-yi
Fr.: gravité de surface  

  1. The rate at which a small object in free fall near the surface of a body is accelerated by the gravitational force of the body: g = GM / R2, where G is the gravitational constant, and M and R are the mass and radius of the object. The
    surface gravity of Earth is equal to 980 cm s-2.

  2. → black hole surface gravity.

See also: → surface; → gravity.