Some one trying to explain Pluto's existence. The square peg never fit in the round hole. In order to be a moon, Pluto would have to orbit Neptune. It doesn't, it orbits the sun. :) There are a number of KBO's that are in resonance with Neptune besides Pluto. However, doing a little research before my post to ensure the facts were correct, I learned Saturn is in resonance with Jupiter 2:3. Interesting, by you suggestion Saturn should be a moon of Jupiter <grin> That research turned up some more interesting tidbits. Due to finding so many hot Jupiters orbiting other stars, p lanetary scientists have been scrambling to explain their existe nce and why our system doesn't have one. Solar system formation isn't as cut and dried as it used to be. Uranus and Neptune formed closer in and migrated out. Allegedly the migration has stopped , but in the process, they have swept a lot of little chunks of matter into a "scattered disk" which is the actual source of short period comets (orbits less than 200 years). Initially, the Kuiper belt was proposed to be the repository of those short period comets. The Kuiper belt is believed to be fairly stable. Which answers my question as to why Pluto (and Charon), bigger than most KBOs, never "fell toward the sun."
Why aren't planets called "star-moons"? Then moons would be star-moon moons. ;-) I found it interesting that the Pluto-Charon orbital barycenter isn't inside Pluto, leading some astronomers to consider it a "double planet", er, "double dwarf planet", or whatever it is. On Wed, Jul 22, 2015 at 11:24 AM, Joan Carman <jcarman6@q.com> wrote:
Some one trying to explain Pluto's existence. The square peg never fit in the round hole. In order to be a moon, Pluto would have to orbit Neptune. It doesn't, it orbits the sun. :)
How does that Jupiter/Saturn resonance work? I thought Jupiter has a 12 year orbit and Saturn just under 30. How is that a 2:3 resonance? On Jul 22, 2015 11:24 AM, "Joan Carman" <jcarman6@q.com> wrote:
Some one trying to explain Pluto's existence. The square peg never fit in the round hole. In order to be a moon, Pluto would have to orbit Neptune. It doesn't, it orbits the sun. :) There are a number of KBO's that are in resonance with Neptune besides Pluto. However, doing a little research before my post to ensure the facts were correct, I learned Saturn is in resonance with Jupiter 2:3. Interesting, by you suggestion Saturn should be a moon of Jupiter <grin>
That research turned up some more interesting tidbits. Due to finding so many hot Jupiters orbiting other stars, p lanetary scientists have been scrambling to explain their existe nce and why our system doesn't have one. Solar system formation isn't as cut and dried as it used to be. Uranus and Neptune formed closer in and migrated out. Allegedly the migration has stopped , but in the process, they have swept a lot of little chunks of matter into a "scattered disk" which is the actual source of short period comets (orbits less than 200 years). Initially, the Kuiper belt was proposed to be the repository of those short period comets. The Kuiper belt is believed to be fairly stable. Which answers my question as to why Pluto (and Charon), bigger than most KBOs, never "fell toward the sun." _______________________________________________ Utah-Astronomy mailing list http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy
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Maybe its a 5:2 resonance. Never take Wikipedia as absolute fact :) But its an excellent place to get the neuron's firing. ----- Original Message ----- From: "Siegfried Jachmann" <siegfried@jachmann.org> To: "Utah Astronomy" <utah-astronomy@mailman.xmission.com> Sent: Wednesday, July 22, 2015 12:06:11 PM Subject: Re: [Utah-astronomy] Pluto Planet Status How does that Jupiter/Saturn resonance work? I thought Jupiter has a 12 year orbit and Saturn just under 30. How is that a 2:3 resonance? On Jul 22, 2015 11:24 AM, "Joan Carman" <jcarman6@q.com> wrote:
Some one trying to explain Pluto's existence. The square peg never fit in the round hole. In order to be a moon, Pluto would have to orbit Neptune. It doesn't, it orbits the sun. :) There are a number of KBO's that are in resonance with Neptune besides Pluto. However, doing a little research before my post to ensure the facts were correct, I learned Saturn is in resonance with Jupiter 2:3. Interesting, by you suggestion Saturn should be a moon of Jupiter <grin>
That research turned up some more interesting tidbits. Due to finding so many hot Jupiters orbiting other stars, p lanetary scientists have been scrambling to explain their existe nce and why our system doesn't have one. Solar system formation isn't as cut and dried as it used to be. Uranus and Neptune formed closer in and migrated out. Allegedly the migration has stopped , but in the process, they have swept a lot of little chunks of matter into a "scattered disk" which is the actual source of short period comets (orbits less than 200 years). Initially, the Kuiper belt was proposed to be the repository of those short period comets. The Kuiper belt is believed to be fairly stable. Which answers my question as to why Pluto (and Charon), bigger than most KBOs, never "fell toward the sun." _______________________________________________ Utah-Astronomy mailing list http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy
Send messages to the list to Utah-Astronomy@mailman.xmission.com
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_______________________________________________ Utah-Astronomy mailing list http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Send messages to the list to Utah-Astronomy@mailman.xmission.com The Utah-Astronomy mailing list is not affiliated with any astronomy club. To unsubscribe go to: http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Then enter your email address in the space provided and click on "Unsubscribe or edit options".
participants (3)
-
Chuck Hards -
Joan Carman -
Siegfried Jachmann