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Astronomy. the point in the orbit of a planet or a comet at which it is farthest from the sun.
aphelion, in astronomy, the point in the orbit of a planet, comet, or other body most distant from the Sun. When Earth is at its aphelion in early July, it is about 4,800,000 km (3,000,000 miles) farther from the Sun than when at its perihelion in early January.
APHELION definition: 1. the point in an object's orbit (= a curved path in space around a planet or star) around the sun…. Learn more.
noun. aph· elion a-ˈfēl-yən ˌap-ˈhēl-. plural aphelia a-ˈfēl-yə. ˌap-ˈhēl-. : the point farthest from the sun in the path of an orbiting celestial body (such as a planet) compare perihelion.
APHELION meaning: 1. the point in an object's orbit (= a curved path in space around a planet or star) around the sun…. Learn more.
15 sie 2024 · aphelion (plural aphelia or (deprecated) aphelions) (astronomy, also figuratively) The point in the elliptical orbit of a comet, planet, or other astronomical object, where it is farthest from the Sun. Antonym: perihelion. 1837, William Whewell, “The Inductive Epoch of Newton—Discovery of the Universal Gravitation of Matter, according to ...
Description: Aphelion is the point along an orbit around the Sun where the orbiting body is farthest from the Sun. Objects orbiting the Sun and not affected by any other object have orbits with an elliptical shape with the Sun at one of the foci of this ellipse. Mathematically, aphelion marks one end of the major axis of the ellipse.
