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Planets in Our Solar System: Definitions and Criteria

Learn the definitions of planets and dwarf planets according to the IAU and our own criteria. Explore which celestial bodies qualify as planets based on their orbits, moons, and distance from the sun.

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Planets in Our Solar System: Definitions and Criteria

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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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