Толковый словарь английского языка Oxford English Reference - astronomical

adj. (also astronomic) 1 of or relating to astronomy. 2 extremely large; too large to contemplate. Phrases and idioms astronomical unit a unit of measurement in astronomy equal to the mean distance from the centre of the earth to the centre of the sun, 1.495 x 10(11) metres or 92.9 million miles. astronomical year see YEAR n. 1. Derivatives astronomically adv. Etymology: L astronomicus f. Gk astronomikos