(n.) That point of a planet's or comet's orbit which is most distant from the sun, the opposite point being the perihelion.
APHELION
Meaning of APHELION in English
Webster's English dictionary. Английский словарь Webster. 2012
(n.) That point of a planet's or comet's orbit which is most distant from the sun, the opposite point being the perihelion.
Webster's English dictionary. Английский словарь Webster. 2012