Discovery of the transiting planet kepler-5b

David G. Koch, William J. Borucki, Jason F. Rowe, Natalie M. Batalha, Timothy M. Brown, Douglas A. Caldwell, John Caldwell, William D. Cochran, Edna Devore, Edward W. Dunham, Andrea K. Dupree, Thomas N. Gautier, John C. Geary, Ron L. Gilliland, Steve B. Howell, Jon M. Jenkins, David W. Latham, Jack J. Lissauer, Geoff W. Marcy, David MorrisonJill Tarter

Research output: Contribution to journalArticlepeer-review

85 Scopus citations


We present 44 days of high duty cycle, ultra precise photometry of the 13th magnitude star Kepler-5 (KIC 8191672, T eff= 6300 K, log g= 4.1), which exhibits periodic transits with a depth of 0.7%. Detailed modeling of the transit is consistent with a planetary companion with an orbital period of 3.548460 0.000032 days and a radius of 1.431+0.041 -0.052 R J. Follow-up radial velocity measurements with the Keck HIRES spectrograph on nine separate nights demonstrate that the planet is more than twice as massive as Jupiter with a mass of 2.114+0.056 -0.059 M J and a mean density of 0.894 0.079 g cm -3.

Original languageEnglish (US)
Pages (from-to)L131-L135
JournalAstrophysical Journal Letters
Issue number2 PART 2
StatePublished - 2010

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science


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