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

Водич корак по корак

  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

Worked Examples

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

Common Mistakes to Avoid

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

Frequently Asked Questions

Are Saturn rings inside Roche limit?

Yes, explaining why rings exist instead of moon.

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