planet orbit

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glamistify

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does all the planets orbit the sun in the same direction? as in clockwise or anti-clockwise?
 
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vogon13

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Yep.<br /><br />Asteroids too.<br /><br />Only the very occaisional comet goes 'round the wrong way.<br /><br /> <div class="Discussion_UserSignature"> <p><font color="#ff0000"><strong>TPTB went to Dallas and all I got was Plucked !!</strong></font></p><p><font color="#339966"><strong>So many people, so few recipes !!</strong></font></p><p><font color="#0000ff"><strong>Let's clean up this stinkhole !!</strong></font> </p> </div>
 
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odysseus145

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Neptune's moon Triton orbits the opposite way too. <div class="Discussion_UserSignature"> </div>
 
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vogon13

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Phoebe too, but inquiry concerned sun.<br /><br /><img src="/images/icons/smile.gif" /><br /><br /> <div class="Discussion_UserSignature"> <p><font color="#ff0000"><strong>TPTB went to Dallas and all I got was Plucked !!</strong></font></p><p><font color="#339966"><strong>So many people, so few recipes !!</strong></font></p><p><font color="#0000ff"><strong>Let's clean up this stinkhole !!</strong></font> </p> </div>
 
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odysseus145

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My mistake. Didn't catch that. <img src="/images/icons/tongue.gif" /> <div class="Discussion_UserSignature"> </div>
 
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vogon13

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1.<br /><br />99+% of all the matter in the solar system did fall into the sun. Solar systems where the percentage is 100% don't generate individuals to pose the question. (weak anthropocentric principle, IIRC <img src="/images/icons/wink.gif" /> )<br /><br /><br />2.<br /><br />Sorry I can't post the copyrighted diagram that makes it all so clear at a glance. If you have access to a book called The New Solar System, check out the planetary ring chapter. The collapse to the Laplacian plane diagram applies to forming solar systems, ring systems around planets and moons, and disk galaxies. If you are unable to locate the book, just accept it on faith that there is a very good explanation for why it occurs. The spherically distributed material around a planet or star doesn't just collapse into a plane, it collapses into a plane more or less aligned with the equator of the central object, automatically.<br /><br />Simple physics, amazing (to me) results.<br /><br /> <div class="Discussion_UserSignature"> <p><font color="#ff0000"><strong>TPTB went to Dallas and all I got was Plucked !!</strong></font></p><p><font color="#339966"><strong>So many people, so few recipes !!</strong></font></p><p><font color="#0000ff"><strong>Let's clean up this stinkhole !!</strong></font> </p> </div>
 
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Saiph

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actually, if you properly attribute the source, and are not making money off of it, you should be able to post the pic. Especially in such an informal setting as this. <div class="Discussion_UserSignature"> <p align="center"><font color="#c0c0c0"><br /></font></p><p align="center"><font color="#999999"><em><font size="1">--------</font></em></font><font color="#999999"><em><font size="1">--------</font></em></font><font color="#999999"><em><font size="1">----</font></em></font><font color="#666699">SaiphMOD@gmail.com </font><font color="#999999"><em><font size="1">-------------------</font></em></font></p><p><font color="#999999"><em><font size="1">"This is my Timey Wimey Detector.  Goes "bing" when there's stuff.  It also fries eggs at 30 paces, wether you want it to or not actually.  I've learned to stay away from hens: It's not pretty when they blow" -- </font></em></font><font size="1" color="#999999">The Tenth Doctor, "Blink"</font></p> </div>
 
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kmarinas86

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<font color="yellow">2. What dynamics makes celestial entities like solar systems and galaxies flatten out on a plane. Why not form spherical structures for instance?</font><br /><br />The oort cloud is spherical, and so are elliptical galaxies.<br /><br />So it's not an absolute rule.<br /><br />And also, the orbits of the planets are tilted with respect to each other.<br /><br />If the gravity is too strong, like inside celestial objects and elliptical galaxies, or if the gravity is too weak, which is the case in the oort cloud and galactic halo, then we won't have something like a spiral galaxy or a solar system plane.
 
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vogon13

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Making me fess up to a grotesque lack of computer skills shall curry you no favors. <img src="/images/icons/wink.gif" /><br /><br />{I have never been able to make my scanner work, uplinking a picture to SDC, EGAD! I'd probably crash the internet . . . . . .}<br /><br />-Also-<br /><br />Collapse mechanism weakens with the density of the materials and their distance from the center. That the Oort cloud hasn't collapsed to a plane is just due to it's not having a sufficient density of objects. If someone else could load the referenced diagram, I'd be most grateful.<br /><br />Ellipsoidal galaxies may be formed of collisions of other galaxies, since the stars even in a thickly strewn galaxy are quite far apart, the collisional mechanism to (re)form a planar structure in an ellipsoidal galaxy cannnot occur.<br /><br /> <div class="Discussion_UserSignature"> <p><font color="#ff0000"><strong>TPTB went to Dallas and all I got was Plucked !!</strong></font></p><p><font color="#339966"><strong>So many people, so few recipes !!</strong></font></p><p><font color="#0000ff"><strong>Let's clean up this stinkhole !!</strong></font> </p> </div>
 
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Saiph

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it's not gravity that's "making" it orbit. It's momentum (i.e. inertia).<br /><br />The particles had a significant "tangential" component to their velocity, a sideways motion that didn't point into the center of the system. And that tangential momentum must remain. <div class="Discussion_UserSignature"> <p align="center"><font color="#c0c0c0"><br /></font></p><p align="center"><font color="#999999"><em><font size="1">--------</font></em></font><font color="#999999"><em><font size="1">--------</font></em></font><font color="#999999"><em><font size="1">----</font></em></font><font color="#666699">SaiphMOD@gmail.com </font><font color="#999999"><em><font size="1">-------------------</font></em></font></p><p><font color="#999999"><em><font size="1">"This is my Timey Wimey Detector.  Goes "bing" when there's stuff.  It also fries eggs at 30 paces, wether you want it to or not actually.  I've learned to stay away from hens: It's not pretty when they blow" -- </font></em></font><font size="1" color="#999999">The Tenth Doctor, "Blink"</font></p> </div>
 
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