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/əˈfiː.lɪ.ən/ · noun
(astronomy, also figuratively) The point in the elliptical orbit of a comet, planet, or other astronomical object, where it is farthest from the Sun..
[I]t follows from the theory of gravity, that the aphelia of Mercury, Venus, the Earth, and Mars, slightly progress.
Use aphelion when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Aphelion means (astronomy, also figuratively) The point in the elliptical orbit of a comet, planet, or other astronomical object, where it is farthest from the Sun..
The closest synonym depends on the sentence and intended sense.
Possible antonyms include perihelion.
[I]t follows from the theory of gravity, that the aphelia of Mercury, Venus, the Earth, and Mars, slightly progress.
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