龙虾
发表于 2025-3-28 18:05:21
Planet X — The Current Statussn’t the predicted planet and the discrepancies still exist. This continuing existence of systematic differences between the observations and ephemerides of Uranus and Neptune has led to predictions of a Planet X. The demise of the dinosaurs and the existence of comets have been cited as additional
抱怨
发表于 2025-3-28 22:05:29
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共栖
发表于 2025-3-28 23:05:56
Sweeping through a second order resonanceeffects of the passage through a first order resonance forced by small non conservative forces. These models have been helpful in understanding the processes of capture into resonance and of formation of gaps at resonances. Second order resonances (3/1 or 5/3 …) have not been so thoroughly investiga
得意人
发表于 2025-3-29 05:01:51
Secular Resonances: New Resultsich is located in a region where three resonances overlap: the two secular resonances .. and ν. and the mean motion resonance 5/1. The numerical integration yields a qualitative orbital evolution of this particular region.
使坚硬
发表于 2025-3-29 07:45:48
Normal Co-Ordinates and Asymptotic Expansions in Resonance Cases in Celestial Mechanics the mutual perturbations in a planetary or satellite system, entirely in periodic terms, can be carried out after the use of a transformation of the variables which brings the quadratic terms of the Hamiltonian to a suitable normal form. A method for finding such a transformation is described.
值得尊敬
发表于 2025-3-29 13:42:10
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直觉没有
发表于 2025-3-29 16:30:24
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Narcissist
发表于 2025-3-29 22:24:27
Short and Long Period Orbitsriod orbits (LPO) are joined by an infinity of bridges. We study the evolution of these families as the bar perturbation changes. In particular we find the change of the connections between various families at particular collisions of bifurcations. When L., L. become unstable the SPO and LPO join aw
Encoding
发表于 2025-3-30 00:35:30
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bonnet
发表于 2025-3-30 08:01:54
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