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Asteroids and Comets - NASA
URL: http://nssdc.gsfc.nasa.gov/planetary/planets/asteroidpage.html
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Submitted: Tue Oct 19 2004
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CT: Space Objects and Comets: Asteroids and Comets - NASA
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An announcement was made on March 15 of the discovery of the furthest object so far seen in our solar system. The object, named Sedna, is estimated to be 1300 to 1800 km in diameter (Pluto is 2400 km in diameter). For more information, see the NASA Press Release