Quote:
Originally Posted by Robert Tulip
Tusenfem, one answer to my questions indicated that Saturn had only 8% of Jupiter's gravitational effect on the sun, but my calculation is that it is 30%, with Uranus and Neptune around 5%. Which is right?
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Well, let's see, gravity is proportional to the mass of the planet and inversely proportional to the distance squared of the planet. Taking Jupiter as 1/1 then Saturn is 0.30/1.83, which leads to the ratio 0.30/1.83 2 = 9×10 -2.
Methinks, you are wrong, you only considered the mass ratio between Jupiter and Saturn, and not the difference in radial direction.
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