Hubble Space Telescope Time-Series Photometry of the Transiting Planet of HD 209458

  title={Hubble Space Telescope Time-Series Photometry of the Transiting Planet of HD 209458},
  author={Timothy M. Brown and David Charbonneau and Ronald L. Gilliland and Robert W. Noyes and Adam S. Burrows},
  journal={The Astrophysical Journal},
  pages={699 - 709}
We have observed four transits of the planet of HD 209458 using the STIS spectrograph on the Hubble Space Telescope (HST). Summing the recorded counts over wavelength between 582 and 638 nm yields a photometric time series with 80 s time sampling and relative precision of about 1.1 × 10-4 per sample. The folded light curve can be fitted within observational errors using a model consisting of an opaque circular planet transiting a limb-darkened stellar disk. In this way we estimate the planetary… 

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