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Concept information

classical mechanics aspects > celestial mechanics > orbit > orbital element > eccentricity

Terme préférentiel

eccentricity  

Définition

  • The amount by which the orbit deviates from circularity: e = c/a, where c is the distance from the center to a focus and a the semi-major axis. If e = 0, the orbit is a circle. If e < 1, the orbit is an ellipse, if e > 1 it is a hyperbola, and if e = 1 it is a parabola. The eccentricity is one of the six orbital elements that define a Keplerian orbit. (An Etymological Dictionary of Astronomy and Astrophysics, by M. Heydari-Malayeri, https://dictionary.obspm.fr/index.php?formSearchTextfield=eccentricity&formSubmit=Search&showAll=1)

Concept générique

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URI

http://data.loterre.fr/ark:/67375/MDL-LX59GKWF-N

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