
1) Aphelion 2) Apogean 3) Apojove 4) Apolune 5) Aposelene
Found on
https://www.crosswordclues.com/clue/apoapsis

1) Celestial point 2) Point of apoapsis
Found on
https://www.crosswordclues.com/clue/apoapsis

is the point of furthest excursion, or separation, between two orbiting objects.
Found on
http://en.wikipedia.org/wiki/Glossary_of_astronomy

That point in an orbit which is farthest from the primary.
Found on
http://www.braeunig.us/space/glossary.htm

The point in the orbit of a body, such as a planet, moon, comet, or spacecraft which is furthest from the primary. Special names, including apastron, aphelion, and apogee, are given to this orbital point for familiar systems.
Found on
http://www.daviddarling.info/encyclopedia/A/apoapsis.html

the point in the orbit of a satellite or planet which is at a maximum distance from the centre of mass of the primary body
Found on
http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=725-11-27

The farthest point in an orbit from the body being orbited.
Found on
http://www.encyclo.co.uk/visitor-contributions.php

The point in an orbitwhen a planet is farthest from any body other than the Sun or the Earth.
Found on
http://www.encyclo.co.uk/visitor-contributions.php

The point in orbit farthest from the planet.
Found on
http://www.solarviews.com/eng/terms.htm

[
n] - (astronomy) the point in an orbit farthest from the body being orbited
Found on
http://www.webdictionary.co.uk/definition.php?query=apoapsis
point of apoapsis noun (astronomy) the point in an orbit farthest from the body being orbited
Found on
https://www.encyclo.co.uk/local/20974
No exact match found.