Third-order Uranus-Neptune theory by Hori's method |
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Authors: | Osman M Kamel |
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Institution: | (1) Astronomy Dept., Faculty of Sciences, Cairo University Giza, Egypt |
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Abstract: | We construct a U-N secular canonical planetary theory of the third order with respect to planetary masses. The Hori-Lie procedure is adopted to solve the problem. Expansions have been carried out by hand, neglecting powers higher than the second with respect to the eccentricity-inclination. We take into account the principal as well as the indirect part of the planetary disturbing function. The theory is expressed in terms of the Poincaré canonical variables, referring to the Jacobi-Radau set of origins. We assume that the 1:2 U-N critical terms and its multiples are the only periodic terms. |
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