What makes something a planet?



  1. 0 Votes

    A planet is a celestial body that is in orbit around the sun, it must have sufficient mass for its self gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape and has cleared the neighborhood around its orbit.

    These standards were set forth by the International Astronomers Union.

  2. 0 Votes

    With the demotion of Pluto from its planetary status, a new classification was created in 2006 for dwarf planets. These celestial objects meet the first two requirements of being a planet, but they do not have the gravitational pull necessary to clear the neighbor, or push/pull away other objects in their orbit.

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