Euler equation

In determining the equation of the light curve, the solution of the Euler equation is represented as a Taylor series. However, as a rule, the region of its convergence can not be established. Therefore, we propose to obtain an exact solution of this equation for a certain model of the atmosphere.

In this paper, we propose a numerical-analytical method for the approximate determination of the coordinates of the points of the light curve, when the refractive index n is a function of the polar coordinates r, Ѳ