解释
- n. 远日点
※ 提供单词"aphelion"的中文意思、发音示范及音标对照，中英文词源、例句和用法等。
英文词源
- aphelion (n.)
- "point farthest from the sun" (of a celestial body's orbit), 1670s, a Grecianized form of Modern Latin aphelium, altered by Johannes Kepler based on Greek apo heliou "away from the sun," from apo "away from" (see apo-) + heliou, genitive of helios "sun" (see sol). The whole was formed on the model of Ptolemaic apogaeum (see apogee) to reflect the new helio-centric model of the universe.