apex : Idioms & Phrases
Apex of the earth's motion
(Astron.) , that point of the heavens toward which the earth is moving in its orbit.
Webster 1913
apex of the sun's way
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noun the point on the celestial sphere toward which the sun and solar system appear to be moving relative to the fixed stars
apex; apex of the sun's way.
WordNet
solar apex
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noun the point on the celestial sphere toward which the sun and solar system appear to be moving relative to the fixed stars
apex; apex of the sun's way.
