Aphelion Definition
ə-fēlē-ən, ăp-hē-
aphelia, aphelions
noun
aphelia
The point on the orbit of a celestial body that is farthest from the sun.
American Heritage
The point farthest from the sun in the orbit of a planet or comet, or of a man-made satellite in orbit around the sun.
Webster's New World
Antonyms:
Other Word Forms of Aphelion
Noun
Singular:
aphelion
Plural:
aphelionsOrigin of Aphelion
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Greek form of Latin aphelium, from Ancient Greek ἀπό (apo, “from”) + ἥλιος (hēlios, “sun”) (modelled after apogaeum). Compare perihelion.
From Wiktionary
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From New Latin aphēlium Greek apo- apo- Greek hēlios sun sāwel- in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition
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