( n. )
The ratio of the distance of the center of the orbit of a heavenly body from the center of the body round which it revolves to the semi-transverse axis of the orbit.
( n. )
The ratio of the distance of the center of the orbit of a heavenly body from the center of the body round which it revolves to the semi-transverse axis of the orbit.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012