frankuitaalst
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here some results for the 5-earth sim . I ran them for about 400 years . Timestep = 128 sec . Tilmestep was perhaps too big for the 4 inner planets , as they lost their moons . The 5th earth kept his moon . Interesting is the following : 1. Time before the Kozai becomes "visible" rises about exponentially with AU ( see last Excel-graph ) . This means that the moons of the outer planets must be protected by "time" . 2. Inclination changes slowly in the beginning , but increases rapidly as the ecc. goes to 1. 3. After reaching the max ecc the system gets in a cycle with decreasing ecc and decreasing incl , rising again , a.s.o. It is further interesting to run the sim with a smaller time step in order to obtain the frequency of the fluctations of incl . ( avoiding the moons are lost ) . I tried to correlate the frequency of oscillation tothe time needed to obtain full ecc , but data are to few . Such a link must exist surely . Note : running the sim I observed that the moon of the first earth changed the orientation at ecc=1 , meaning she returned to the earth in the some direction as she come from , meaning rotating clockwise instead of anti-clockwise . Really surprising !!!
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