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innerlight
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I watched a program that said that some of Earth's past climate change was due to variations in Earth's orbit and precession due to the the gravitational perturbations caused by Venus and Jupiter. Why would that be so?
I know that the orbits of the planets are eliiptical generally and they these elliptical orbits (while remaining elliptical) can shift in their orientation (perhaps their plane?)
So are these the causes of the changes to the orbits of Venus and Jupiter and is that how they affect Earth?
If so, is the effect on the change of Earth's precession due to to the tugging by Jupiter and Venus on different portions of the Earth to cause precession and/or obliquity shifts of the Earth?
thanks
I know that the orbits of the planets are eliiptical generally and they these elliptical orbits (while remaining elliptical) can shift in their orientation (perhaps their plane?)
So are these the causes of the changes to the orbits of Venus and Jupiter and is that how they affect Earth?
If so, is the effect on the change of Earth's precession due to to the tugging by Jupiter and Venus on different portions of the Earth to cause precession and/or obliquity shifts of the Earth?
thanks