From the out side regions the satellites were formed. Because of the velocity of mutual collisions increases at the approaching to the planet, there is a region near an every planet where the particles reaching the definite sizes begin to pull due to the mutual collisions. The billions years of collisions and 10 meters paticle became so crumbly that scatter after the small knock with a speed of one millimeter a second. Any big particle passes the whole cycle from the destruction to the restoration.

This mutual competition preventing from the formation of big satellites becomes weaker when removing from the planet and at the some distance the parts of the substance turn into the satellite and some parts of inside material of a cloud being parcelled stay as rings.