Supplementing the equations of Kepler's first law and the Mercury effect

It is proved that the equation of an elliptical orbit obtained taking into account the action of gravity can also be obtained taking into account the action of two forces - gravity and centrifugal force. It is shown that taking into account the centrifugal force allows us to justify the stability of elliptical orbits. This property of the new solution allows us to assert the reality of centrifugal force. It is further shown that the satellite is affected by the Coriolis force, which creates a rotating moment of the satellite around the Sun. It is this moment that explains the Mercury effect. This fact allows us to assert the reality of the Coriolis force.