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A '''planet''' is a astronomical body that is in [[orbit]] around a [[star]], has sufficient mass for its own [[gravity]] to overcome rigid body forces, assumes an approximately spherical shape, and has cleared the neighborhood around its orbit <ref>http://www.iau.org/iau0603.414.0.html</ref>, i.e. has "swept out" the area around its orbit during its formation, accreting into its mass all other smaller bodies within its orbit. Consequently, a planet does not share its orbital region with any other bodies of significant size, except for its satellites or those collected later by virtue of its gravitational field.  

A '''planet''' is a astronomical body that is in [[orbit]] around a [[star]], has sufficient mass for its own [[gravity]] to overcome rigid body forces, assumes an approximately spherical shape, and has cleared the neighborhood around its orbit <ref>http://www.iau.org/iau0603.414.0.html</ref>, i.e. has "swept out" the area around its orbit during its formation, accreting into its mass all other smaller bodies within its orbit. Consequently, a planet does not share its orbital region with any other bodies of significant size, except for its satellites or those collected later by virtue of its gravitational field.  

== References ==

== References ==

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{{Solarsystem}}

{{Solarsystem}}

[[Category:Astronomy]]

[[Category:Astronomy]]