Astron.
an imaginary sun moving uniformly in the celestial equator and taking the same time to make its annual circuit as the true sun does in the ecliptic.
Astron.
an imaginary sun moving uniformly in the celestial equator and taking the same time to make its annual circuit as the true sun does in the ecliptic.
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012