(ˈ)a|pastrən, -ˌsträn noun
( plural apas·tra -_strə)
Etymology: New Latin, from apo- + Greek astron star — more at star
: the point in the orbit of one star of a binary where it is farthest from the other — compare periastron
(ˈ)a|pastrən, -ˌsträn noun
( plural apas·tra -_strə)
Etymology: New Latin, from apo- + Greek astron star — more at star
: the point in the orbit of one star of a binary where it is farthest from the other — compare periastron
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012