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Aphelion

Babylon English English dictionary

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aphelion
n. point at which an orbiting planet or satellite is farthest from the sun

Wikipedia English The Free Encyclopedia

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Perihelion and aphelion
The perihelion is the point in the orbit of a planetminor planet, or comet, where it is nearest to its sun. It is the opposite of aphelion, which is the point in the orbit where the celestial body is farthest from its sun.

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WordNet 2.0 Dictionary

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aphelion

Noun
1. apoapsis in solar orbit; the point in the orbit of a planet or comet that is at the greatest distance from the sun
(antonym) perihelion
(hypernym) apoapsis, point of apoapsis


Webster's Revised Unabridged Dictionary (1913)

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Aphelion
(n.)
That point of a planet's or comet's orbit which is most distant from the sun, the opposite point being the perihelion.
  

Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter. About

ASTRONOMY UNBOUND Dictionary

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Aphelion
The furthest distance an object in an elliptical orbit around the Sun reaches from it.


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