Skip to main content
Calkulon

learn.howToCalculate

learn.whatIsHeading

Roche limit is minimum distance satellite can orbit before tidal forces exceed self-gravity, disrupting it into rings.

Steg-för-steg-guide

  1. 1Input primary density, satellite density, and mass ratio
  2. 2Calculate rigid or fluid limit depending on satellite type
  3. 3Results show minimum stable orbital distance

Lösta exempel

Ingång
Earth-Moon: Roche limit ~2.46 Earth radii (within Moon orbit)
Resultat
Moon stable but gradually receding
Currently ~384,400 km

Vanliga misstag att undvika

  • Confusing rigid and fluid Roche limits
  • Not accounting for density differences

Vanliga frågor

Are Saturn rings inside Roche limit?

Yes, explaining why rings exist instead of moon.

Redo att beräkna? Prova den kostnadsfria Roche Limit-kalkylatorn

Prova själv →

Inställningar

IntegritetVillkorOm© 2026 Calkulon