aphelion

a·phe·li·on  (-fl-n, -flyn) n. pl. a·phe·li·a (-l-) The point on the orbit of a celestial body that is farthest from the sun. [From New Latin aphlium : Greek apo-, apo- + Greek hlios, sun; see swel- in Indo-European roots.]

aphelion

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aphelion [æpˈhiːlɪən əˈfiː-]

n pl -lia [-lɪə]

(Astronomy) the point in its orbit when a planet or comet is at its greatest distance from the sun Compare perihelion

[from New Latin aphēlium (with pseudo-Greek ending -ion) from ap- + Greek hēlios sun]

aphelian  adj

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aphelion  (-fl-n) The point at which an orbiting body, such as a planet or comet, is farthest away from the Sun. Compare apogeeperihelion

aphelion

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aphelion

the point in the orbit of a heavenly body where it is farthest from the sun. Cf. perihelion.

See also: Astronomy

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the point in the orbit of a heavenly body where it is farthest from the sun. See also perihelion.

See also: Planets

Thesaurus

Noun

1.

aphelion - apoapsis in solar orbit; the point in the orbit of a planet or comet that is at the greatest distance from the sun apoapsis, point of apoapsis - (astronomy) the point in an orbit farthest from the body being orbited perihelion - periapsis in solar orbit; the point in the orbit of a planet or comet where it is nearest to the sun