Found 2 items, similar to Aphelion.
English → English (WordNet) Definition: aphelion aphelion n : apoapsis in solar orbit; the point in the orbit of a planet or comet that is at the greatest distance from the sun [ant: perihelion] [also: aphelia (pl)]
English → English (gcide) Definition: Aphelion Aphelion \A*phel"ion\ (?; 277), n.; pl. Aphelia. [Gr. ? + ? sun.] (Astron.) That point of a planet's or comet's orbit which is most distant from the sun, the opposite point being the perihelion. [1913 Webster]