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There are 3 cycles important for determining seasons, extreme temperatures, and length for any given planet in any given orbit as long as it isn't too elliptical.
Those are:
But assuming eccentricity is only a factor in that it determines orbital precession and is not so high that the planet is in different zones at different points in its orbit, how would I calculate the orbital precession and the axial precession of any planet around any star where the planet's eccentricity is not too extreme?
Those are:
- Orbital precession(this is what causes supermoons(when perigee lines up with a full moon))
- Axial tilt(this determines the extremes of seasons and whether or not there are seasons)
- Axial precession(change in axial tilt over thousands of years)
But assuming eccentricity is only a factor in that it determines orbital precession and is not so high that the planet is in different zones at different points in its orbit, how would I calculate the orbital precession and the axial precession of any planet around any star where the planet's eccentricity is not too extreme?