The analytical orbit is Eq. (21), which can be checked by computer algebra and graphed. In Eq. (21) H sub 1 is a constant. The astronomically observed orbit is a precessing ellipse. By adjusting H1, exact agreement can be obtained with the astronomical data. This theory can be made more and more precise by considering more and more terms in the binomial expansion of Eq. (1). In immediately preceding UFT papers the orbit of the ECE2 lagrangian was found numerically to be a precessing ellipse.