apoapsis vs aposelene

apoapsis and aposelene both are nouns.

Word	Noun	Adjective	Verb	Adverb
apoapsis	Yes	No	No	No
aposelene	Yes	No	No	No

As nouns, aposelene is a hyponym of apoapsis; that is, aposelene is a word with a more specific, narrower meaning than apoapsis:

apoapsis: (astronomy) the point in an orbit farthest from the body being orbited
aposelene: apoapsis in orbit around the moon

Other hyponyms of apoapsis include apogee, aphelion, apojove, apolune.

apoapsis (noun)	aposelene (noun)
(astronomy) the point in an orbit farthest from the body being orbited	apoapsis in orbit around the moon