apex of the sun's way vs apex

apex of the sun's way and apex both are nouns.

Word	Noun	Adjective	Verb	Adverb
apex of the sun's way	Yes	No	No	No
apex	Yes	No	No	No

As nouns, apex of the sun's way and apex are synonyms defined as:

apex of the sun's way and apex: the point on the celestial sphere toward which the sun and solar system appear to be moving relative to the fixed stars

Other synonyms of apex of the sun's way include solar apex.

apex of the sun's way (noun)	apex (noun)
the point on the celestial sphere toward which the sun and solar system appear to be moving relative to the fixed stars	the highest point (of something)
	the point on the celestial sphere toward which the sun and solar system appear to be moving relative to the fixed stars