Crantor, a short-lived horseshoe companion to Uranus

  title={Crantor, a short-lived horseshoe companion to Uranus},
  author={C. D. L. F. Marcos and R. D. L. F. Marcos},
  journal={Astronomy and Astrophysics},
Context. Stable co-orbital motion with Uranus is vulnerable to planetary migration, but temporary co-orbitals may exist today. So far, only two candidates have been suggested, both moving on horseshoe orbits: 83982 Crantor (2002 GO9 ) and 2000 SN331 .Aims. (83982) Crantor is currently classified in the group of the Centaurs by the MPC although the value of its orbital period is close to that of Uranus. Here we revisit the topic of the possible 1:1 commensurability of (83982) Crantor with Uranus… Expand
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