Spokes in the B ring movie

Spokes in the B ring movie
Spokes in the B ring movie This movie is made from many separate Voyager 1 images of the B ring. Spokes are apparently a seasonal phenomenon; they were readily visible to the Voyagers, when Saturn was near its equinox, but were not visible to Cassini when it arrived during Saturn's southern summer. NASA / JPL-Caltech

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