As nouns the difference between apoapsis and apocentre
is that 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 while apocentre is apoapsis.
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)