yes you are correct due to its size it is not regarded as a planet. but there is still debate going on who think still it is a planet. may be after one or two months, it may be declared a planet again.
2006-10-18 07:06:30
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answer #1
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answered by Anonymous
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Pluto in the Minor Planet Center catalogue, is the second-largest dwarf planet in the solar system. It orbits between 29 and 49 AU from the Sun, and was the first Kuiper Belt Object to be discovered. Approximately one-fifth the mass of the Earth's Moon, Pluto is primarily composed of rock and ice. It has an eccentric orbit that is highly inclined with respect to the planets and takes it closer to the Sun than Neptune during a portion of its orbit. Pluto and its largest satellite, Charon, have often been considered a binary system because they are more nearly equal in size than any of the other known planetoid/moon combinations in the solar system, and because the barycentre of their orbits does not lie within either body. However, the International Astronomical Union (IAU) has yet to formalize a definition for binary dwarf planet, therefore Charon is regarded as a moon of Pluto for now. Two smaller moons, Nix and Hydra, were discovered in 2005. Pluto is smaller than several of the natural satellites or moons in our solar system (see the list of solar system objects by radius).
From its discovery by Clyde Tombaugh in 1930, Pluto was considered the ninth planet from the Sun. In the late 20th and early 21st century, many similar objects were discovered in the outer solar system, most notably the Trans-Neptunian object Eris which is slightly larger than Pluto. In August 2006 the IAU redefined the term "planet", and classified Pluto, Ceres, and Eris as dwarf planets.[1] Pluto is also classified as the prototype of a family of trans-Neptunian objects.[2][3] After the reclassification, Pluto was added to the list of minor planets and given the number 134340.
2006-10-18 08:14:55
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answer #2
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answered by Miss LaStrange 5
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pluto was downgraded only because of the fact that it is two asteriods revolving around each other and that together the size is not even as big as our moon.
2006-10-18 08:16:04
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answer #3
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answered by Anonymous
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Let the scientist called any thing, whether dwarf or plant or asteroid. But every one already accepted it is Pluto.
2006-10-18 13:04:13
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answer #4
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answered by svs power 2
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Pluto will always be a planet to me...
2006-10-18 08:15:51
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answer #5
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answered by superlaminal 2
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yes it is
the scientists claim that pulto is too small to be a planet
but these same scientist say jupiter and satern are planets even though they have no solid surface
goes to show you that anyone with no brain can be a scientist!
2006-10-18 08:21:18
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answer #6
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answered by exchange 3
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Its not an asteroid but a dwarf planet.
2006-10-18 08:24:13
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answer #7
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answered by Anonymous
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Dwarf planet is its new designation
2006-10-18 08:14:31
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answer #8
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answered by Anonymous
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Yes, scientist believe that the size of pluto is too small to call it a planet anymore. sorry dunno what it's called now.
2006-10-18 08:17:05
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answer #9
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answered by JJJ 2
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