10th planet

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ucantseeme

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hi this is ankur, iwant to know about the 10th planet of our solar system i only know about it is the name of its discoverer , tell me as much as you know about this planet .
 
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harmonicaman

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Hi Ankur,<br /><br />Well; 2003 UB313 is not actually a planet "Officially" until the IAU says it is...<br /><br />...and there's even talk that Pluto may lose planetary status and bring the Solar System's count down to only eight designated planets!
 
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3488

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http://uplink.space.com/showflat.php?Cat=&Board=askastronomer&Number=547089&page=0&view=collapsed&sb=5&o=0&fpart=<br /><br />See the link above. The boundaries of what constitutes a planet appears to blur even further AT THE UPPER LIMIT, (Is Jupiter a T Type Brown Dwarf), not just for the lower limit for ice bodies like Pluto & 2003 UB313 (are they planets or are they just the largest of the KBOs). <div class="Discussion_UserSignature"> <p><font color="#000080">"I suddenly noticed an anomaly to the left of Io, just off the rim of that world. It was extremely large with respect to the overall size of Io and crescent shaped. It seemed unbelievable that something that big had not been visible before".</font> <em><strong><font color="#000000">Linda Morabito </font></strong><font color="#800000">on discovering that the Jupiter moon Io was volcanically active. Friday 9th March 1979.</font></em></p><p><font size="1" color="#000080">http://www.launchphotography.com/</font><br /><br /><font size="1" color="#000080">http://anthmartian.googlepages.com/thisislandearth</font></p><p><font size="1" color="#000080">http://web.me.com/meridianijournal</font></p> </div>
 
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enigma10

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I hate blurs.<img src="/images/icons/frown.gif" /> <div class="Discussion_UserSignature"> <em>"<font color="#333399">An organism at war with itself is a doomed organism." - Carl Sagan</font></em> </div>
 
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olivebird111

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you see there are so many objects in our solar system, a lot of them are bigger than pluto, and follow a eliptical path. And scientist are debating if they are planets, also, we dont really know how big is our solar system, so thats why they dont know when to stop )=!<br />
 
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3488

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There are several moons larger than Pluto, (Triton, Europa, The Moon, Io, Callisto, Titan & Ganymede). Also the large Kuiper Belt object 2003 UB313 is larger than Pluto.<br /><br />If Pluto remains a planet, what about the status of the large moons of our solar system?? <div class="Discussion_UserSignature"> <p><font color="#000080">"I suddenly noticed an anomaly to the left of Io, just off the rim of that world. It was extremely large with respect to the overall size of Io and crescent shaped. It seemed unbelievable that something that big had not been visible before".</font> <em><strong><font color="#000000">Linda Morabito </font></strong><font color="#800000">on discovering that the Jupiter moon Io was volcanically active. Friday 9th March 1979.</font></em></p><p><font size="1" color="#000080">http://www.launchphotography.com/</font><br /><br /><font size="1" color="#000080">http://anthmartian.googlepages.com/thisislandearth</font></p><p><font size="1" color="#000080">http://web.me.com/meridianijournal</font></p> </div>
 
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alokmohan

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I would say Percival Lowell is the man who thought of 10th planet.In the beginning of this century scientists had expected that motion of planets was finally settled after discovery of Neptune in 1846.But that did not happen.Even then all perurbations werenot explained.Lowell thoght of 9th planet .Upto that time there were 8 planet.Lowell didnot find any thing..But he had foreseen a planet larger than Jupiter.After his death Clyde Tombough dicovered a planet .He mistook it as large as Jupiter .But that was not.Since then we are looking for 10th planet larger than Jupier.Alas it never happened .Now we are to catch small shots and poor pluto will be out sourced.
 
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tropicalzone

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i wonder how far a body could get from the sun and still be held by the sun's gravity?
 
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chesh

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It depends on the mutual mass of the bodies. If the attractive force between two bodies is large enough, then they will continue to orbit each other.<br /><br />This is shown by Galaxies orbiting larger galaxies in our Local Group, such as the LMC and SMC and the satellite galaxies of M31. There is no upper limit to the orbiting mass between two gravitational masses.<br /><br />Two sufficiently massive black holes could orbit each other at hundreds of millions of light years, just as our sun orbits the galaxy's center.<br /><br />No large masses have been detected which are large enough to orbit the sun at those distances.<br /><br />But a very large and massive dark star or black hole could easily orbit the sun in a stable orbit if its mass were large enough.<br /><br />so the actual statement needs to be, "No masses large enough to orbit the sun beyond 100,000 AU have been detected". And are probably unlikely to exist, too, as such large masses would have been very probably been detected by our telescopes and their gravitational influences on the outer planets.
 
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bdewoody

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Easy, if an object orbits a planet it's a moon. If it orbits the sun and is large enough to maintain a spherical shape it's a planet (or should be). <div class="Discussion_UserSignature"> <em><font size="2">Bob DeWoody</font></em> </div>
 
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blazincajun

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bdewoody <font color="yellow"> Easy, if an object orbits a planet it's a moon. If it orbits the sun and is large enough to maintain a spherical shape it's a planet (or should be) </font><br /><br />I feel the same way about that. But what would you call it when it was two planets locked together and orbiting a sun? <div class="Discussion_UserSignature"> </div>
 
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bdewoody

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A binary planet! <div class="Discussion_UserSignature"> <em><font size="2">Bob DeWoody</font></em> </div>
 
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blazincajun

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You're right I don't have a clue what I was thinking. Brain fart I guess. <img src="/images/icons/laugh.gif" /> <div class="Discussion_UserSignature"> </div>
 
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