информация с сайта наса вроде про какую то 10 планету.(правда старая) NASA-Funded Scientists Discover Tenth Planet
07.29.05
A planet larger than Pluto has been discovered in the outlying regions of the solar system.
The planet was discovered using the Samuel Oschin Telescope at Palomar Observatory near San Diego, Calif. The discovery was announced today by planetary scientist Dr. Mike Brown of the California Institute of Technology in Pasadena, Calif., whose research is partly funded by NASA.
Image above: These time-lapse images of a newfound planet in our solar system, called 2003UB313, were taken on Oct. 21, 2003, using the Samuel Oschin Telescope at the Palomar Observatory near San Diego, Calif. The planet, circled in white, is seen moving across a field of stars. The three images were taken about 90 minutes apart. Scientists did not discover that the object in these pictures was a planet until Jan. 8, 2005. Image credit: Samuel Oschin Telescope, Palomar Observatory
+ Highest resolution image available
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+ Quicktime (CC): Narrated overview of discovery
The planet is a typical member of the Kuiper belt, but its sheer size in relation to the nine known planets means that it can only be classified as a planet, Brown said. Currently about 97 times further from the sun than the Earth, the planet is the farthest-known object in the solar system, and the third brightest of the Kuiper belt objects.
"It will be visible with a telescope over the next six months and is currently almost directly overhead in the early-morning eastern sky, in the constellation Cetus," said Brown, who made the discovery with colleagues Chad Trujillo, of the Gemini Observatory in Mauna Kea, Hawaii, and David Rabinowitz, of Yale University, New Haven, Conn., on January 8.
Brown, Trujillo and Rabinowitz first photographed the new planet with the 48-inch Samuel Oschin Telescope on October 31, 2003. However, the object was so far away that its motion was not detected until they reanalyzed the data in January of this year. In the last seven months, the scientists have been studying the planet to better estimate its size and its motions.
"It's definitely bigger than Pluto," said Brown, who is a professor of planetary astronomy.
Scientists can infer the size of a solar system object by its brightness, just as one can infer the size of a faraway light bulb if one knows its wattage. The reflectance of the planet is not yet known. Scientists can not yet tell how much light from the sun is reflected away, but the amount of light the planet reflects puts a lower limit on its size.
"Even if it reflected 100 percent of the light reaching it, it would still be as big as Pluto," says Brown. "I'd say it's probably one and a half times the size of Pluto, but we're not sure yet of the final size.
"We are 100 percent confident that this is the first object bigger than Pluto ever found in the outer solar system," Brown added.
A name for the new planet has been proposed by the discoverers to the International Astronomical Union, and they are awaiting the decision of this body before announcing the name.
For more information and images see:
http://www.nasa.gov/vision....es.html
or
http://www.astro.caltech.edu/palomarnew/sot.html
For information about NASA and agency programs on the Web, visit:
http://www.nasa.gov/ .
Revised on 8/3/05.
Jane Platt (818) 354-0880
Jet Propulsion Laboratory, Pasadena, Calif.
Dolores Beasley (202/358-1237/1753)
NASA Headquarters, Washington
Robert Tindol (626) 395-3631
California Institute of Technology, Pasadena, Calif.
2005-126
http://www.nasa.gov/vision/universe/solarsystem/newplanet-072905.html
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