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Uranus's axis
I am new to astrology. Can someone tell me how Uranus rotates on an axis 90
degrees from its rotation around the sun. What pulls it around in a direction perpendicular to its orbit around the sun? |
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Uranus's axis
"Bill" wrote in message
news I am new to astrology. Sorry to hear that. Why not switch to astronomy before any permanent brain damage occurs? Can someone tell me how Uranus rotates on an axis 90 degrees from its rotation around the sun. What pulls it around in a direction perpendicular to its orbit around the sun? Nothing pulls it; It's a matter of rotational inertia. The planet's rotational axis remains (almost) in a fixed orientation in space while the planet itself goes around the Sun. I said "almost" in the above because, like every other planet, there are perturbations due to external influences that will make the axis wobble and precess slightly, just as Earth's axis wobbles and precesses. |
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Uranus's axis
In message , Greg Neill
writes "Bill" wrote in message news I am new to astrology. Sorry to hear that. Why not switch to astronomy before any permanent brain damage occurs? Can someone tell me how Uranus rotates on an axis 90 degrees from its rotation around the sun. What pulls it around in a direction perpendicular to its orbit around the sun? Nothing pulls it; It's a matter of rotational inertia. The planet's rotational axis remains (almost) in a fixed orientation in space while the planet itself goes around the Sun. The interesting question is _why_ Uranus has that inclination, when the other planets except Pluto have inclinations either near zero or between 20 and 30 degrees. ISTR that a huge impact event has been proposed (as it has for Venus) but I don't know if that's still believed. -- "Forty millions of miles it was from us, more than forty millions of miles of void" |
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Uranus's axis
"Jonathan Silverlight" wrote in message ... In message , Greg Neill writes "Bill" wrote in message news I am new to astrology. Sorry to hear that. Why not switch to astronomy before any permanent brain damage occurs? Can someone tell me how Uranus rotates on an axis 90 degrees from its rotation around the sun. What pulls it around in a direction perpendicular to its orbit around the sun? Nothing pulls it; It's a matter of rotational inertia. The planet's rotational axis remains (almost) in a fixed orientation in space while the planet itself goes around the Sun. The interesting question is _why_ Uranus has that inclination, when the other planets except Pluto have inclinations either near zero or between 20 and 30 degrees. ISTR that a huge impact event has been proposed (as it has for Venus) but I don't know if that's still believed. Venus is near 180, not 0. Bruce |
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Uranus's axis
In message , Bruce
Sterling Woodcock writes "Jonathan Silverlight" wrote in message ... The interesting question is _why_ Uranus has that inclination, when the other planets except Pluto have inclinations either near zero or between 20 and 30 degrees. ISTR that a huge impact event has been proposed (as it has for Venus) but I don't know if that's still believed. Venus is near 180, not 0. You're right, of course. I was quoting "The New Solar System" which uses a figure of 2 degrees and ignores the retrograde rotation. -- "Forty millions of miles it was from us, more than forty millions of miles of void" |
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Uranus's axis
"Bill" wrote in message nk.net...
I am new to astrology. Can someone tell me how Uranus rotates on an axis 90 degrees from its rotation around the sun. What pulls it around in a direction perpendicular to its orbit around the sun? If you follow Greg's advice toward astronomy, you may become interested in a more speculative interpretation. Uranus has two (at times perpendicular) motions: toward Galactic Center and toward the Sun. When in front of the Sun, in its Galactic path, Uranus' Galactic speed is slowed by Sun's gravity, thereby allowing the Sun to pass Uranus. When behind the Sun, Uranus is accelerated by Sun's gravity to pass the Sun. When viewed from the Galactic frame, at no time does Uranus move backwards. Its Galactic speed is alternately accelerated and slowed in passing and being passed by the Sun. John Curtis |
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Uranus's axis
I apologize for using the word astrology instead of astronomy, however I was
surprised that no one knew the answer and could only reply to my misuse of words. I was disappointed. Thanks anyway. "Bill" wrote in message news I am new to astrology. Can someone tell me how Uranus rotates on an axis 90 degrees from its rotation around the sun. What pulls it around in a direction perpendicular to its orbit around the sun? |
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Uranus's axis
"Bill" wrote in message
ink.net... I apologize for using the word astrology instead of astronomy, however I was surprised that no one knew the answer and could only reply to my misuse of words. I was disappointed. Thanks anyway. ??? You received several answers. How is it you missed them? |
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Uranus's axis
"Bill" wrote in message ink.net... I apologize for using the word astrology instead of astronomy, however I was surprised that no one knew the answer and could only reply to my misuse of words. I was disappointed. Thanks anyway. It was your misuse of the concepts behind the words that will keep you disappointed. Your question was, in fact, answered. You used the word pull in the present tense. Nothing has to continually pull it in a direction perpendicular to its orbit around the sun. How it originally got that way is not known for certain. There simply isn't enough information to completely rule out any one of a number of hypotheses. However, once it got that way, good, old-fashioned inertia is what keeps it going that way. "Bill" wrote in message news I am new to astrology. Can someone tell me how Uranus rotates on an axis 90 degrees from its rotation around the sun. What pulls it around in a direction perpendicular to its orbit around the sun? |
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Uranus's axis
In article ,
Greg Neill wrote: "Bill" wrote in message ink.net... I apologize for using the word astrology instead of astronomy, however I was surprised that no one knew the answer and could only reply to my misuse of words. I was disappointed. Thanks anyway. ??? You received several answers. How is it you missed them? In one way he was right though: currently, science has no answer to why Uranus' rotation axis has such a large inclination. And some people who don't understand the scientific process but instead view science as a kind of religion get disappointed when learning about something science cannot explain. -- ---------------------------------------------------------------- Paul Schlyter, Grev Turegatan 40, SE-114 38 Stockholm, SWEDEN e-mail: pausch at stockholm dot bostream dot se WWW: http://www.stjarnhimlen.se/ http://home.tiscali.se/pausch/ |
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