aphelion
n. 远核点；远日点
名词复数：aphelia
近义词：perihelion，
英英释义
Noun
- apoapsis in solar orbit; the point in the orbit of a planet or comet that is at the greatest distance from the sun
例句
用作名词(n.)
- Otherwise difficult to notice, the change in the Sun's apparent diameter between Perihelion and Aphelion is clear.我们很难用肉眼看出近日点和远日点太阳视直径的变化，但在这张图上显而易见。