/euh pas"treuhn, -tron/ , n. , pl. apastra /-treuh/ . Astron.
the point at which the stars of a binary system are farthest apart (opposed to periastron ).
[ ap- AP- 2 + ástron star, constellation; on the model of APOGEE ]
/euh pas"treuhn, -tron/ , n. , pl. apastra /-treuh/ . Astron.
the point at which the stars of a binary system are farthest apart (opposed to periastron ).
[ ap- AP- 2 + ástron star, constellation; on the model of APOGEE ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012