sus the venus–earth system， which seems to be a reaction caused by the conservation of angular momentum in the terresial planetary subsystem.
it is not clear at the moment why the venus–earth pair exhibits a negative correlation in energy exchange and a positive correlation in angular momentum exchange. we may possibly explain this through observing the general fact that there are no secular terms in planetary semimajor axes up to second-order perturbation theories (cf. brouwer & clemence 1961; boccaletti & pucacco 1998). this means that the planetary orbital energy (which is directly related to the semimajor axis a) migh
对火星轨道变化问题的最后解释(37/49)