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List of notable asteroids - Wikipedia, the free encyclopedia
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Ceres, the largest asteroid, only acounts for one third of the material in its orbit;
http://en.wikipedia.org/wiki/Definition_of_planets
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Observations of 1 Ceres, the largest known asteroid, have revealed that the object may be a "mini planet," and may contain large amounts of pure water ice beneath its surface. ... Besides being the largest asteroid, Ceres also was the first asteroid to be discovered. Sicilian astronomer Father Giuseppe Piazzi spotted...
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September 7, 2005: Observations of Ceres, the largest known asteroid, have revealed that the object may be a "mini planet," sharing many characteristics of the rocky, terrestrial planets like Earth. Ceres' mantle, which wraps around the asteroid's core, may even be composed of water ice.
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Overview of current scientific knowledge of asteroids. ... The largest asteroid by far is 1 Ceres. It is 974 km in diameter and contains about 25% of the mass of all the asteroids combined. The next largest are 2 Pallas, 4 Vesta and 10 Hygiea which are between 400 and 525 km in diameter.
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Observations of 1 Ceres, the largest known asteroid, have revealed that the object may be a "mini planet," and may contain large amounts of pure water ice beneath its surface. The observations by NASA's Hubble Space Telescope also show that Ceres shares characteristics of the rocky, terrestrial planets like Earth.
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Learn How Big Space Is With KidsAstronomy.com ... On August 23, 2001 Astronomers announced the discovery of a new asteroid. The new asteroid is even bigger than Ceres, which for over two hundred years had been thought to be the largest asteroid in the Solar System.
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