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Counter clockwise rotation of planets?



 
 
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  #1  
Old September 29th 03, 06:41 PM
Bill Duncan
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Default Counter clockwise rotation of planets?

Except for Venus and Uranus,why do the rest of the planets including
the sun and even our own galaxy spin counter clockwise?Thanks,Bill.
  #2  
Old September 29th 03, 08:06 PM
Jonathan Silverlight
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In message , Bill
Duncan writes
Except for Venus and Uranus,why do the rest of the planets including
the sun and even our own galaxy spin counter clockwise?Thanks,Bill.


I think you mean "solar system", not galaxy - we don't know anything
about the spin direction of planets and stars other than in our own
system - but the likely answer is that the original cloud just happened
to be spinning counter-clockwise and so the objects it condensed into
did the same.
--
"Forty millions of miles it was from us, more than forty millions of miles of
void"
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  #3  
Old September 29th 03, 08:06 PM
Jonathan Silverlight
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In message , Bill
Duncan writes
Except for Venus and Uranus,why do the rest of the planets including
the sun and even our own galaxy spin counter clockwise?Thanks,Bill.


I think you mean "solar system", not galaxy - we don't know anything
about the spin direction of planets and stars other than in our own
system - but the likely answer is that the original cloud just happened
to be spinning counter-clockwise and so the objects it condensed into
did the same.
--
"Forty millions of miles it was from us, more than forty millions of miles of
void"
Remove spam and invalid from address to reply.
  #4  
Old September 30th 03, 02:51 AM
Llanzlan Klazmon The 15th
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Bill Duncan wrote in
et:

Except for Venus and Uranus,why do the rest of the planets including
the sun and even our own galaxy spin counter clockwise?Thanks,Bill.


The plane of the galaxy is at around 65 degrees to the plane of the solar
system so your remarks don't make any sense. However, the rotation of the
planets and the Sun will relate to the initial angular momentum of the
nebular from which the solar system formed. The original intrinsic angular
momentum of Venus was lost due to tidal locking and its' current situation
may be a resonance effect. Uranus' unusual tipped over spin axis may have
resulted from it forming from a collision of two large bodies.

Llanzlan
  #5  
Old September 30th 03, 03:30 AM
Jerry Abbott
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The original intrinsic angular
momentum of Venus was lost due to tidal locking and its' current situation
may be a resonance effect.


Speaking of that, do you know how to calculate the spin-down time, or the
1/e rotation frequency diminution time, for a planet as the result of the
tidal drag from a single other body? I've been looking for this equation,
but I haven't found it, and I've been using one I put together on
assumptions that might not be right.

Jerry Abbott


  #6  
Old September 30th 03, 03:30 AM
Jerry Abbott
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The original intrinsic angular
momentum of Venus was lost due to tidal locking and its' current situation
may be a resonance effect.


Speaking of that, do you know how to calculate the spin-down time, or the
1/e rotation frequency diminution time, for a planet as the result of the
tidal drag from a single other body? I've been looking for this equation,
but I haven't found it, and I've been using one I put together on
assumptions that might not be right.

Jerry Abbott


  #7  
Old September 30th 03, 09:57 AM
Zarkovic
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Uranus' unusual tipped over spin axis may have
resulted from it forming from a collision of two large bodies.

Llanzlan


Can someone describe a picture for me of how say for example two huge
gaseous bodies that collide actually alter each other's spin axis and what
not. I understand the huge pressures of gas and that the pressures increase
as you go deeper into the planet, but still is it possible to alter the spin
axis that much of such a huge gaseous body such as Uranus by another gaseous
body? Also just for the hell of it, is there anything in our solar system
that could actually go through one of those gaseous planets and I mean like
some huge body? I am guessing not and it seems like a stupid question, but
here on Earth it just doesn't go hand in hand like that, that a gaseous
bodies have strengths of those made of metals and so on. Anyhow carry on and
I'll cut my ranting.


  #8  
Old September 30th 03, 10:50 AM
Bill C.
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"Llanzlan Klazmon The 15th" wrote in message
7.6...
Bill Duncan wrote in
et:


The original intrinsic angular
momentum of Venus was lost due to tidal locking and its' current situation
may be a resonance effect.


Do we know what it tidal locked with? The sun?

Bill C.


  #9  
Old September 30th 03, 01:51 PM
Ugo
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"Bill C." wrote in message
...

"Llanzlan Klazmon The 15th" wrote in message
7.6...
Bill Duncan wrote in
et:


The original intrinsic angular
momentum of Venus was lost due to tidal locking and its' current

situation
may be a resonance effect.


Do we know what it tidal locked with? The sun?

I'm also curious. Isn't tidal locking to the Sun a bit unreasonable at the
distance Venus is? Let's leave Earth alone because it also has another tidal
companion and let's take our neighbor. Why wasn't Mars, some 2 times farther
from the Sun than Venus also slowed down drastically?
I'm more inclined to say that a large impact during Venusian history
severely disrupted its rotational axis and period, but I'm no expert at
this.
Comments?


  #10  
Old September 30th 03, 06:23 PM
Jonathan Silverlight
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In message , Ugo
writes
"Bill C." wrote in message
...

"Llanzlan Klazmon The 15th" wrote in message
7.6...
Bill Duncan wrote in
et:


The original intrinsic angular
momentum of Venus was lost due to tidal locking and its' current

situation
may be a resonance effect.


Do we know what it tidal locked with? The sun?

I'm also curious. Isn't tidal locking to the Sun a bit unreasonable at the
distance Venus is? Let's leave Earth alone because it also has another tidal
companion and let's take our neighbor. Why wasn't Mars, some 2 times farther
from the Sun than Venus also slowed down drastically?
I'm more inclined to say that a large impact during Venusian history
severely disrupted its rotational axis and period, but I'm no expert at
this.


Nor am I, but I gather that the theory about a large impact has been
joined by the new one, which says there was some sort of interaction
between Venus' atmosphere and the solar wind. On the subject of tidal
effects, there's also the may-be-coincidental relationships between
Venus' orbital and the Earth's year.
--
"Forty millions of miles it was from us, more than forty millions of miles of
void"
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