Roche Limit/Radius Calculator

The Roche limit or Roche radius, is the distance within which a celestial body, held together only by its own gravity. Here is the online Roche limit/radius calculator to determine the satellite orbital radius. Enter the values of the central mass and the satellite density to find the Roche limit. The satellite orbital radius is expressed in AU.


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The Roche limit/radius calculator determines the limitation of a large body that prevents any other small body to held to it by gravity.