Synonyms: solar apex, apex, apex of the sun's way
Definition: the point on the celestial sphere toward which the sun and solar system appear to be moving relative to the fixed stars
Similar words: celestial point
Definition: a point in the heavens (on the celestial sphere)
Synonyms: vertex, acme, apex, peak
Definition: the highest point (of something)
Usage: at the peak of the pyramid
Similar words: extreme, extreme point, extremum
Definition: the point located farthest from the middle of something