Planets: Difference between revisions
Updated Nonspherical bodies. |
Replaced 'Solid' with 'Terrestrial' in introductory line. |
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There are three main categories of '''[[:Category:Planets|planets]]''': | There are three main categories of '''[[:Category:Planets|planets]]''': Terrestrial planets, water giants and [[Gas Giant|gas giants]]. | ||
The term planet refers to celestial bodies orbiting a [[star]] with a [[gravity]] in a specific range. The gravity of a planet has to be strong enough to hold fluids in a stable state (hydrostatic equilibrium) which prevents them from escaping the planet and low enough to prevent nuclear processes to start as in stars. | The term planet refers to celestial bodies orbiting a [[star]] with a [[gravity]] in a specific range. The gravity of a planet has to be strong enough to hold fluids in a stable state (hydrostatic equilibrium) which prevents them from escaping the planet and low enough to prevent nuclear processes to start as in stars. | ||