First observations of the Phoebe ring in optical light

  title={First observations of the Phoebe ring in optical light},
  author={Daniel Tamayo and Matthew M. Hedman and Joseph A. Burns},
The Phoebe ring, Saturn’s largest and faintest ring, lies far beyond the planet’s well-known main rings. It is primarily sourced by collisions with Saturn’s largest irregular satellite Phoebe, perhaps through stochastic macroscopic collisions, or through more steady micrometeoroid bombardment. The ring was discovered with the Spitzer Space Telescope at 24 lm and has a normal optical depth of � 2 � 10 � 8 

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