Small particles dominate Saturn’s Phoebe ring to surprisingly large distances

  title={Small particles dominate Saturn’s Phoebe ring to surprisingly large distances},
  author={Douglas P. Hamilton and Michael F. Skrutskie and Anne J. Verbiscer and Frank J. Masci},
Saturn’s faint outermost ring, discovered in 2009 (ref. 1), is probably formed by particles ejected from the distant moon Phoebe. The ring was detected between distances of 128 and 207 Saturn radii (RS = 60,330 kilometres) from the planet, with a full vertical extent of 40RS, making it well over ten times larger than Saturn’s hitherto largest known ring, the E ring. The total radial extent of the Phoebe ring could not, however, be determined at that time, nor could particle sizes be… Expand
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