Keplerian expansions in terms of Henrard's practical variables |
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| Authors: | S?awomir Breiter Gilles Metris |
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| Institution: | (1) Astronomical Observatory of A. Mickiewicz University, S oneczna 36, PL60-286 Pozna , Poland;(2) Observatoire de la Côte d'Azur, Av. Copernic, F06-130 Grasse, France |
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| Abstract: | Formulae for the Keplerian expansions in terms of Henrard's  practical variables are given. Two different methods were applied: one using the Bessel functions and one based on the Lie transforms. The former involves less series products, but the latter is more flexible and universal. |
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| Keywords: | Keplerian expansions Henrard variables Lie transforms |
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