The search for Fifth Giant Planet of the solar system.

              Fifth planet of the Solar System - Phaethon.    Igor Krivosheev, M.E. General Provisions. This article is dedicated to the legendary planet Phaethon. The main criteria for proving its existence will be given, which reflect the physical essence of the processes in the Solar System. Criteria based on applied mathematics are only complementary to physical criteria, although they are misinterpreted by experts. The physical criteria are excellent and adequate, and the    evidence base is logical and consistent. The scientific format of the article is fully maintained.       1.      Inclination of the planes of the orbits of asteroids. Inclination of the diurnal axes of rotation of the known planets of the solar system.   a. Necessary and sufficient condition for the Lidov-Kozai mechanism. Private solution " Three bodies problem". Reli...