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Aphelion vs Apoapsis - What's the difference?

aphelion | apoapsis | Related terms |

Apoapsis is a related term of aphelion.



In astronomy terms the difference between aphelion and apoapsis

is that aphelion is the point in the elliptical orbit of a planet, comet, etc., where it is farthest from the sun while apoapsis is the point of a body's elliptical orbit about the system's centre of mass where the distance between the body and the centre of mass is at its maximum.

aphelion

English

Noun

(aphelia)
  • (astronomy) The point in the elliptical orbit of a planet, comet, etc., where it is farthest from the sun.

    • Antonyms

    * perihelion

    Related terms

    * apogee * perihelion * apolune * perilune * apastron

    apoapsis

    English

    Noun

    (apoapsides)
  • (astronomy) The point of a body's elliptical orbit about the system's centre of mass where the distance between the body and the centre of mass is at its maximum.

    • Usage notes

    For some celestial bodies, specialised terms are used.

    Synonyms

    * apocenter

    Antonyms

    * periapsis

    Related terms

    * apastron * aphelion * apolune * apogee

    See also

    * (Apsis)