New planet, discovered by the Samuel Oschin Telescope at the Palomar Observatory near San Diego, Calif., on Jan. 8, 2005, is yet to be formally named.
(This newly-discovered object is more distant than the mysterious planetoid SEDNA discovered in 2003. Sedna is designated 2003 VB12.)
Is at least as big as Pluto and about three times farther away from the Sun than Pluto. It is very cold and dark.It is currently about 97 times farther from the sun than Earth, or 97 Astronomical Units (AU). For comparison, Pluto is 40 AU from the sun.
This places the new planet more or less in the Kuiper Belt, a dark realm beyond Neptune where thousands of small icy bodies orbit the sun. The planet appears to be typical of Kuiper Belt objects--only much bigger. Its sheer size in relation to the nine known planets means that it can only be classified as a planet itself
2006-06-14 01:12:16
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answer #1
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answered by Bizi 4
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In 2003, Mike Brown of Caltech and other scientists (Trujillo and Rabinowitz) discovered another planet-sized body, larger than Pluto, far out beyond Pluto. Following the convention for temporary names of newly discovered astronomical bodies, it was temporarily named 2003 UB313. The astronomers who discovered it also used a 'code name' - Xena - among themselves. But the official name will be decided the the International Astronomical Union, the organization that has the last word on such things.
Xena is a pretty cool name, but there is no chance that it will be the final name. There are no rules for naming astronomical objects, but since all the others are named for Greek and Roman gods, there's a good chance that this one will have a name from mythology, too. The bad news is that all the good names have been taken (by planets, moons, asteroids, and other big rocks out there).
The second web site, below, gives lots of great info about UB313, direct from the horses mouth, Mike Brown himself. It's a well-written web site, written (mostly) in layman's language, and has lots of questions and answers about all kinds of things related to this discovery. Check it out!
2006-06-14 01:12:13
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answer #2
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answered by dougdell 4
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90377 Sedna is a trans-Neptunian object, discovered by Michael Brown (Caltech), Chad Trujillo (Gemini Observatory) and David Rabinowitz (Yale University) on November 14, 2003. At the time of its discovery it was the most distant observed natural solar system body, though this has now been exceeded by 2003 UB313. Sedna is described as a cold planetoid, perhaps as large as two-thirds the size of Pluto.
This is the latest planet discovered.
2006-06-14 02:23:43
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answer #3
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answered by Anonymous
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I read about the planet x in a book one time and they said it was a new planet they had discovered and that it was even further away than pluto.
good luck.
2006-06-14 01:07:19
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answer #4
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answered by john 6
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