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The d = R - d - the Roche Limit: a distance from the primary body.
- M
_{M}- mass of the primary body. - M
_{m}- mass of the secondary body. - R
_{m}- radius of the secondary body.
This formula is derived by determining the distance at which the gravitational force and Tidal Force balance. At longer distances, the secondary body's gravity dominates, holding it together, and at shorter distances, the tidal force from the larger body overcomes its gravity and pulls it apart. dynamics,limit,orbits,gravity,tidal) |