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Silly question about comets and like.

 
Curious
User ID: 33560264
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05/18/2013 11:46 PM
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Silly question about comets and like.
We have comets etc hurl through our systems every so often, some are always on time too. Then they cruise around us / sun and hurled back out into space..

What is the point of mass they're circling 'in space' that pulls them around and shoots them back our way?
Anonymous Coward
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05/18/2013 11:49 PM
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Re: Silly question about comets and like.
The Sun.

spock
Anonymous Coward (OP)
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05/18/2013 11:54 PM
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Re: Silly question about comets and like.
Wouldn't all timed pass-bys be the same then? i.e.. Hale Bop is every 75 or so years. There are some that come around yearly, every 2-3 years etc.. Velocity is an obvious factor, BUT, if they were on the same travel course then chances are the slingshot would make most the same speed?
Anonymous Coward (OP)
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05/19/2013 12:01 AM
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Re: Silly question about comets and like.
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Anonymous Coward
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05/19/2013 12:04 AM
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Re: Silly question about comets and like.
I think the weight of the comets change as they disintegrate in space and they also pass by celestial bodies in a different pattern on their orbit so that changes things as well. Those two things alone would seem to change the orbit somewhat.
Anonymous Coward (OP)
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05/19/2013 12:08 AM
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Re: Silly question about comets and like.
I think the weight of the comets change as they disintegrate in space and they also pass by celestial bodies in a different pattern on their orbit so that changes things as well. Those two things alone would seem to change the orbit somewhat.
 Quoting: Anonymous Coward 37304248


Certainly. I haven't studied nor given much thought to this question. Mass/Makeup of the comet changing would certainly a few calculations / trajectories.

So is every comet lopping out past our sun and slinging back? Since the celestial bodies are always moving position, (i.e.. halleys cycle) wouldn't that totally shoot it off in another direction? That's is saying we're in the same spot every 70 some years.

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