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Definition of Aphelion
1. Noun. Apoapsis in solar orbit; the point in the orbit of a planet or comet that is at the greatest distance from the sun.
Definition of Aphelion
1. n. That point of a planet's or comet's orbit which is most distant from the sun, the opposite point being the perihelion.
Definition of Aphelion
1. Noun. (astronomy) The point in the elliptical orbit of a planet, comet, etc., where it is farthest from the sun. ¹
¹ Source: wiktionary.com
Definition of Aphelion
1. the point in a planetary orbit farthest from the sun [n -ELIA or -ELIONS] : APHELIAN [adj]
Medical Definition of Aphelion
1.