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2014-10-17T20:29:37+05:30
Because now pluto is not considered as a planet

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Because pluto is considered as a dwarf planet, pluto does not come under the range of radius a planet is defined
2014-10-17T20:30:08+05:30
The planet Pluto was considered as a dwarf planet previously. So there are only 8 planets in the solar system.
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