Saturn's moon Phoebe as a captured body from the outer Solar System

  title={Saturn's moon Phoebe as a captured body from the outer Solar System},
  author={Torrence V. Johnson and Jonathan I. Lunine},
The orbital properties of Phoebe, one of Saturn's irregular moons, suggest that it was captured by the ringed planet's gravitational field rather than formed in situ. Phoebe's generally dark surface shows evidence of water ice, but otherwise the surface most closely resembles that of C-type asteroids and small outer Solar System bodies such as Chiron and Pholus that are thought to have originated in the Kuiper belt. A close fly-by of Phoebe by the Cassini–Huygens spacecraft on 11 June 2004 (19… 

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