frankuitaalst

I made a right guess with the scaling formula : vscale= sqrt(Gscale*Mscale/Rscale) . Hereunder a system of 4 Earth planets. The outer two were placed at a distance of 0.2 AU . Initial data are : P1:7500000000,0,0,0,158.509,0 P2:0,851660728,0,507.3214,0,0 P3:7500000000,0,1,0,158.509,0 P4:0,851660728,0,507.3214,0,0 This "double" eight fits quite well for a couple of orbits, but soon a small deviation results in a rather chaotical ( but symmetrical) orbit of the four planets. This symmetry doesn't seem to be broken long after the planets escape from their orbit . Generating the orbits I noticed that the system is very sensible to small variations . For Earth I used 5.97E+24 kg , For G :0,0000000000667259 Simo may be right also stating that the only stable system is the "8" .
