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Defining Planets in Our Solar System

Learn the definitions of planets according to the IAU and our unique classification criteria. This article discusses the characteristics of planets, dwarf planets, and small solar system bodies in our cosmic neighborhood.

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Defining Planets in Our Solar System

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  1. Planet Definitions BY: Nic d, Forrest l, Hartman l.

  2. Definition of a planet • The IAU’s definition of a planet is, A planet is a celestial body that is in orbit around the sun, has sufficient mass for its self-gravity to overcome rigid body forces forces so that it assumes a hydrostatic equilibrium shape and has cleared theneighborhoodd around its orbit. • A dwarf planet is a celestial body that is has not cleared the neighborhood around its orbit , and is not a satellite. • All other objects orbiting the sun shall be referred to collectively as Small Solar System Bodies.

  3. Our definition • A planet is a celestial body that has an orbit around the sun, (a) less than 40 degrees in inclinination, (b) has one moon or more, (c ) is less than 40 AUs from the sun. • If it doesn't meet 1 of the requirements it is a derp planet • If it doesn’t meet 2 requirements it is a neam planet • If it doesn’t meet any requirements it is a small solar system body

  4. Our planets PlanetsDerpNeam Earth huamea makemake Mars ceres eris Jupiter mercury venus Saturn Uranus Neptune Pluto

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