Planet Question

bleeb

Lifer
Feb 3, 2000
10,868
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Why is the earth tilted and spinning diagonally on the axis rather than vertically?
 

rahvin

Elite Member
Oct 10, 1999
8,475
1
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The tilt of the earth is likely attributable to the collision with a comet early in the formation of the solar system, this collision is likely the same one that formed the moon. I don't know why planets rotate the direction they do but vertical spin about the poles seems to be the typical and anything not fitting that was likely caused by collisions.
 

Heisenberg

Lifer
Dec 21, 2001
10,621
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Yeah, some event early in the solar system's history must've knocked the axis off a bit. Since angular momentum is conserved under central forces, it's stayed that way.
 

CrackRabbit

Lifer
Mar 30, 2001
16,642
62
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Without the nifty tilt and wobble that that comet caused i doubt life would exist in the forms that it has for millions of years if at all.
 

rahvin

Elite Member
Oct 10, 1999
8,475
1
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Originally posted by: CrackRabbit
Without the nifty tilt and wobble that that comet caused i doubt life would exist in the forms that it has for millions of years if at all.

That is very likely, the earths rotational period was only 6 hours before the moon was formed. Combine the lack of tilt and the short period and the earth would have likely remained inhospitable to life, but we probably won't ever know that for sure.
 

iamme

Lifer
Jul 21, 2001
21,058
3
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Originally posted by: SynthDude2001
Originally posted by: iamme
all the fatties in the U.S. throws the earth off axis.

Sorry. :(

no prob, just move to another hemisphere for a few milleniums. things should balance out :D
 

bleeb

Lifer
Feb 3, 2000
10,868
0
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Originally posted by: Orsorum
Originally posted by: iamme
Originally posted by: SynthDude2001
Originally posted by: iamme
all the fatties in the U.S. throws the earth off axis.

Sorry. :(

no prob, just move to another hemisphere for a few milleniums. things should balance out :D

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