Web Results
a·phe·li·on
[uh-fee-lee-uhn, uh-feel-yuhn, ap-hee-lee-uhn]
NOUN [PLURAL A·PHE·LI·A]
1.
Astronomy. the point in the orbit of a planet or a comet at which it is farthest from the sun.
Source: Dictionary.com
aphelion | Define aphelion at Dictionary.com
dictionary.reference.com/browse/aphelion
The world's most popular free online dictionary with definitions, spell check, word origins, example sentences, audio pronunciations, Word of the Day and more!

en.wikipedia.org/wiki/Perihelion_and_aphelion

The perihelion is the point in the orbit of a celestial body where it is nearest to its orbital focus, generally a star. It is the opposite of aphelion, which is the point in the orbit where the celestial body is farthest from its focus. The word "perihelion" stems from the Ancient Greek words "peri", meaning ...

simple.wikipedia.org/wiki/Aphelion

The aphelion is the point in the orbit of an object where it is farthest from the Sun. ... The word aphelion derives from the Greek words, apo meaning away, off, ...

www.dictionary.com/browse/aphelion

Aphelion definition, Astronomy. the point in the orbit of a planet or a comet at which it is farthest from the sun. See more.

www.merriam-webster.com/dictionary/aphelion

Sep 21, 2014 ... Define aphelion: the point farthest from the sun in the path of an orbiting celestial body (such as a planet) compare perihelion.

en.oxforddictionaries.com/definition/aphelion

the point in the orbit of a planet, asteroid, or comet at... Meaning, pronunciation, example sentences, and more from Oxford Dictionaries.

www.vocabulary.com/dictionary/aphelion

apoapsis in solar orbit; the point in the orbit of a planet or comet that is at the greatest distance from the sun.

www.heavens-above.com/glossary.aspx?lat=0&lng=0&loc=Unspecified&alt=0&tz=UCT&term=aphelion

Satellite predictions and other astronomical data customised for your location.

www.collinsdictionary.com/us/dictionary/english/aphelion

Aphelion definition: the point in its orbit when a planet or comet is at its greatest distance from the sun | Meaning, pronunciation, translations and examples.

www.craterlakeinstitute.com/natural-history/nightsky-definitions-aphelion.htm

All planets, comets and asteroids in our solar system have elliptical (non-circular) orbits. So, they have a closest (perihelion) and a farthest (aphelion) point from ...