• Planet


  • A planet is a celestial body that is massive enough to be rounded by its own gravity and is usually orbiting a star.[1]
  • A planet proper has a mass greater than Pluto's mass and less massive than ten times Jupiter's mass [2]
  • A planet proper is part of the Solar System.[2]
  • Has cleared the neighborhood around its orbit.[3]
  • A planet that has not cleared the neighborhood around its orbit is called a dwarf planet.[3]
  • A celestial body that meets a planet requirement but is located outside the Solar System is called an exoplanet.
  • Smaller planets that are not massive enough to be rounded by their own gravity are called minor planets.



  2. 2.0 2.1
  3. 3.0 3.1

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