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Author Topic: ?earth rotation around the sun & spin?  (Read 2728 times)

Offline CZARCAR

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?earth rotation around the sun & spin?
« on: 21/10/2011 14:15:40 »
If looking down on the solar system from above the N pole direction, which way does the earth spin on its axis & rotate around the sun?   Clockwise/counterclockwise?     thanx


 

Offline RD

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?earth rotation around the sun & spin?
« Reply #1 on: 21/10/2011 14:26:25 »
both counterclockwise (anticlockwise) looking down from North

Venus spins the opposite way about it's axis... http://en.wikipedia.org/wiki/Venus#Orbit_and_rotation
« Last Edit: 21/10/2011 14:38:03 by RD »
 

Offline MikeS

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?earth rotation around the sun & spin?
« Reply #2 on: 22/10/2011 07:10:04 »
Is this something to do with conservation of momentum when the solar system was formed?  If so what happened to Venus?
 

Offline Soul Surfer

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?earth rotation around the sun & spin?
« Reply #3 on: 22/10/2011 10:19:46 »
Wouldn't we like to know!  it is clear that a lot of big collisions happened late on in the formation of the planets however Venus has the most nearly circular orbit of any of the planets.  The current rotation is also in resonance with its orbit and it may just be that it sort of overshot the stability edge when it was oscillating during the final settling down to a synchronous orbit/rotation mode.
 

Offline CZARCAR

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?earth rotation around the sun & spin?
« Reply #4 on: 22/10/2011 19:32:36 »
earth rotates around sun @ R speed, earth spins on its axis @ S speed. Both R & S are counterclockwise. On the equator @ noon my speed is R-S whereas at midnite its R+S. Q= does this affect the time speed thing?
 

Offline Soul Surfer

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?earth rotation around the sun & spin?
« Reply #5 on: 23/10/2011 18:20:07 »
No because time does not change at all for the observer if he is on the earth's surface.  If you are not the observer you have to specify where the observer is standing   From the solar "north pole" the velocity changes depend on which bit of the earth you are looking at and what time of year it is but the changes are so minute as to be irrelevant
 

Offline acsinuk

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?earth rotation around the sun & spin?
« Reply #6 on: 23/10/2011 19:04:15 »
Interesting observation.  It could be that we have a moon whereas Mercury and Venus have no satellites?
CliveS
 

Offline CZARCAR

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?earth rotation around the sun & spin?
« Reply #7 on: 25/10/2011 16:50:48 »
women are from venus.....enuff said
 

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?earth rotation around the sun & spin?
« Reply #7 on: 25/10/2011 16:50:48 »

 

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