Roche limit

Related Overviews


'Roche limit' can also refer to...


More Like This

Show all results sharing these subjects:

  • Earth Sciences and Geography
  • Astronomy and Astrophysics


Show Summary Details

Quick Reference

The distance within which the tidal forces exerted by a planet are sufficient to disrupt a satellite or smaller body. For bodies in circular orbits with zero tensile strength and the same mean density as the primary, the Roche limit is 2.46 × (primary-body radius). In the case of the Earth–Moon system, the critical distance is 2.89 Earth radii (18 400 km).

Subjects: Earth Sciences and Geography — Astronomy and Astrophysics.

Reference entries

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.