SP-345 Evolution of the Solar
System
FIGURE 18.6.1.- Photometric curve of
the Saturnian rings (according to Dollfus, 1961). The abscissa gives
the distance from the center of Saturn in cm. The top scale giver.
the orbital period of the particles.. The periods., which are
integral fractions. of the periods. Of the inner Saturnian
satellites, are marked in the upper part of the diagram. According to
the resonance theory, the density minima in the ring system should be
produced by resonance with there satellites. The lack of correlation
between low-integer resonances and structural features shows. that
this is. not the care.
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