aphelion


aph·elion

noun \a-ˈfēl-yən, ˌap-ˈhēl-\
plural aph·elia\-yə\

Definition of APHELION

:  the point in the path of a celestial body (as a planet) that is farthest from the sun — compare perihelion

Origin of APHELION

New Latin, from apo- + Greek hēlios sun — more at solar
First Known Use: 1656

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