Quote Originally Posted by Oneironaut
... but the other planets' effects on the tides are not measurable. If they can't even manage to cause a slight variation in the tides, it's certain that they won't be able to cause any natural disasters.
Ha I acually had to do this as a homework problem in my ast 2001 class. The tidal effects of all the other planets combined have almost no effect compaired to the sun and moon. You can derive the tidal force from newtons second law: Tidal force=2GMm/r^3.

Compair Jupiter and the Moon (because of it's mass Jupiter will have the greatest tidal effect on the Earth after the Sun)

Jupiter~7.47x10^9
Moon~1.22x10^15

This means that Jupiter has 0.000006 of the tidal effect on the Earth as the moon. The Sun has somthing like 0.26 of the tidal effect as the moon.

I'll have to find my old homework and find out what I acually did. But it's basicly done this way for each planet, then you sum up all the forces.
MoonStarer420 Reviewed by MoonStarer420 on . 2012 theory> What the hell is this? i went on wikipedia because when i googled "2012 theory" i got complicated sites that were pretty lame. On wikipedia, i looked up "2012" and when i went to the month december it listed "december 21" and had three dates. * 21st - Marks the beginning of the Winter Solstice at 11:11 UTC. * 21st - End of the twelfth, final baktun in the long count of the Maya calendar and Aztec calendar. * 21st - Striking planetary formation along the Ecliptic involving 7 Rating: 5