A Jupiter-mass companion to a solar-type star

  title={A Jupiter-mass companion to a solar-type star},
  author={M. Mayor and D. Queloz},
  • M. Mayor, D. Queloz
  • Published 1995
  • Physics
  • Nature
  • The presence of a Jupiter-mass companion to the star 51 Pegasi is inferred from observations of periodic variations in the star's radial velocity. The companion lies only about eight million kilometres from the star, which would be well inside the orbit of Mercury in our Solar System. This object might be a gas-giant planet that has migrated to this location through orbital evolution, or from the radiative stripping of a brown dwarf. 
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