How does the period of the outermost particles in Jupiter's rings compare with the period of the outermost particles in Saturn's rings?

The outer radius of the Saturnian ring system is about 274,000 km, whereas the outer radius of Jupiter's ring system is about 222,000 km. How does the period of the outermost particles in Jupiter's rings compare with the period of the outermost particles in Saturn's rings? For Jupiter, the period is... show more The outer radius of the Saturnian ring system is about 274,000 km, whereas the outer radius of Jupiter's ring system is about 222,000 km. How does the period of the outermost particles in Jupiter's rings compare with the period of the outermost particles in Saturn's rings?

For Jupiter, the period is slightly shorter than Saturn.

For Jupiter, the period is exactly the same as for Saturn.

For Jupiter, the period is slightly longer than Saturn..

For Jupiter, the period is zero.
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