WordReference Random House Unabridged Dictionary of American English © 2026
so′lar a′pex, [Astron.]
  1. Astronomythe point on the celestial sphere, near Vega, toward which the solar system is moving relative to the visible stars.
  • 1870–75

'solar apex' also found in these entries (note: many are not synonyms or translations):
antapex - apex

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