Detection of Planetary Transits Across a Sun-like Star

  title={Detection of Planetary Transits Across a Sun-like Star},
  author={David Charbonneau and Timothy M. Brown and David W. Latham and Michel Mayor},
  journal={The Astrophysical Journal Letters},
  pages={L45 - L48}
We report high-precision, high-cadence photometric measurements of the star HD 209458, which is known from radial velocity measurements to have a planetary-mass companion in a close orbit. We detect two separate transit events at times that are consistent with the radial velocity measurements. In both cases, the detailed shape of the transit curve due to both the limb darkening of the star and the finite size of the planet is clearly evident. Assuming stellar parameters of 1.1 R⊙ and 1.1 M⊙, we… 

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