A planet is an astronomical body that orbits a star. For a body to be defined as a planet by the International Astronomical Union, it also needs to be small enough so that nuclear fusion does not take place, rounded by its own gravity, and to have cleared planetesimals in its neighboring region.
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PLANETA planet is an astronomical body that orbits a star. For a body to be defined as a planet by the International Astronomical Union, it also needs to be small enough so that nuclear fusion does not take place, rounded by its own gravity, and to have cleared planetesimals in its neighboring region.