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Definition of Aphelion
1. Noun. Apoapsis in solar orbit; the point in the orbit of a planet or comet that is at the greatest distance from the sun.
Definition of Aphelion
1. n. That point of a planet's or comet's orbit which is most distant from the sun, the opposite point being the perihelion.
Definition of Aphelion
1. Noun. (astronomy) The point in the elliptical orbit of a planet, comet, etc., where it is farthest from the sun. ¹
¹ Source: wiktionary.com
Definition of Aphelion
1. the point in a planetary orbit farthest from the sun [n -ELIA or -ELIONS] : APHELIAN [adj]
Medical Definition of Aphelion
1.
Lexicographical Neighbors of Aphelion
Literary usage of Aphelion
Below you will find example usage of this term as found in modern and/or classical literature:
1. Gravitation: An Elementary Explanation of the Principal Perturbations in the by George Biddell Airy (1884)
"The perihelion distance, therefore, remaining the same, and the aphelion distance
... Now, suppose the force increasing the velocity to act at aphelion. ..."
2. Manual of Geology: Treating of the Principles of the Science with Special by James Dwight Dana (1894)
"Changes in the time of the perihelion and aphelion. —'The earth is now in aphelion
during the northern summer and southern whiter. With aphelion in winter, ..."
3. A Complete System of Astronomy by Samuel Vince, Nicolas Louis de La Caille, Tobias Mayer, Franz Xaver Zach, James Bradley (1814)
"Having explained the different methods of finding the place of the aphelion,
excentricity and greatest equation; it will be proper to explain the methods of ..."
4. The Harmony of the World by Johannes Kepler, A. M. (Alistair Matheson) Duncan, Eric J. Aiton, Judith Veronica Field (1997)
"But by the a priori arguments the motion at aphelion, not of Venus, but of the
Earth, was close to the harmony of several diapasons which had to be ..."
5. A Plain Elementary and Practical System of Natural Experimental Philosophy by John Ewing (1809)
"... then the sum and difference of the mean distance and eccentricity will
respectively give the aphelion and perihelion distances of the earth. ..."
6. The Penny Cyclopædia of the Society for the Diffusion of Useful Knowledge by Society for the Diffusion of Useful Knowledge (Great Britain), George Long (1838)
"The aphelion is the place where the planet's path is perpendicular to the ...
Tha is, the planet will be at aphelion sooner than it woul< have been if no ..."
7. Appletons' Annual Cyclopædia and Register of Important Events of the Year (1887)
"It has long been known that the aphelion-distances of cometa are grouped ...
Thus we know that there is a large group of comets whose aphelion-distance is ..."
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