Notes on Timescales
- Orbital Times
- Planet orbits are from 1 year-ish (inner solar system) to 10
years (outer solar system)
- Moon orbits are of order a few days.
- So right up until the planet is really close to the
star, the moon orbits much faster than the planet orbits the
star.
- Migration time
- Migration probably takes from 1,000 to 10,000 [Earth] years.
- This means that the moon's orbit can adjust more or
less adiabtically.
- Tidal damping timescales are of order one million
years, so tidal damping is not an important effect.
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By John Weiss
Rendered Sunday 30 March 2003