lanets. this does not mean that the inner terresial planetary subsystem is more stable than the outer one: this is simply a result of the relative smallness of the masses of the four terresial planets compared with those of the outer jovian planets. another thing we notice is that the inner planetary subsystem may become unstable more rapidly than the outer one because of its shorter orbital time-scales. this can be seen in the panels denoted asinner 4 in fig. 7 where the longer-periodic and irregular oscillations are more apparent than in the panels denoted astotal 9. actually， the fluctuations in theinner 4 panels are to a large extent as a result of
对火星轨道变化问题的最后解释(34/49)