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Mechanics and Mechanical Engineering
Herein we lay the broad lines for the construction of a first order w.r.t planetary masses Jupiter-Saturn theory-giving the orbital elements of the two planets at any epoch. This is implemented by the evaluation of the R. H. S. of the original first order Hamiltonian equations of motion. The first order Hamiltonian is composed of the first order secular terms and the first order periodic terms. We restrict the periodic terms to be the commensurate ones for the J-S (Jupiter-Saturn) subsystem. Wefatcat:htnlqlth4rburpekbjimmevoxa