Difference between revisions of "Eccentricity"

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(New page: ==Definition== Any orbit in planetary dynamics can be assumed to be of conic cross-section shape. The '''eccentricity''' of this conic section, the '''orbit's eccentricity''', is an impor...)
 
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*for [[elliptic orbit]]s: <math>0<e<1\,\!</math>,
 
*for [[elliptic orbit]]s: <math>0<e<1\,\!</math>,
 
*for [[parabolic orbit]]s: <math>e=1\,\!</math>,
 
*for [[parabolic orbit]]s: <math>e=1\,\!</math>,
*for [[hyperbolic orbit]s]: <math>e>1\,\!</math>.
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*for [[hyperbolic orbit]]s: <math>e>1\,\!</math>.
  
[[category:orbital mechanics]]
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[[category:Orbital Mechanics]]

Revision as of 14:00, 6 October 2007

Definition

Any orbit in planetary dynamics can be assumed to be of conic cross-section shape. The eccentricity of this conic section, the orbit's eccentricity, is an important parameter of the orbit that defines its absolute shape. Eccentricity may be interpreted as a measure of how much this shape deviates from a circle.[1]

Eccentricity () is strictly defined for all circular, elliptic, parabolic and hyperbolic orbits and may take following values:

  • Wikipedia article on eccentricity.