* Astronomy

Title: A Transiting Hot Jupiter Orbiting a Metal-Rich Star
Authors: Edward W. Dunham (Lowell Observatory) William J. Borucki (NASA Ames Research Centre) David G. Koch (NASA Ames Research Centre) Natalie M. Batalha (San Jose State University) Lars A. Buchhave (Harvard-Smithsonian Centre for Astrophysics) Timothy M. Brown (Las Cumbres Observatory Global Telescope) Douglas A. Caldwell (SETI Institute) William D. Cochran (University of Texas, Austin) Michael Endl (University of Texas, Austin) Debra Fischer (Yale University) Gabor Furesz (Harvard-Smithsonian Centre for Astrophysics) Thomas N. Gautier III (Jet Propulsion Laboratory) John C. Geary (Harvard-Smithsonian Centre for Astrophysics) Ronald L. Gilliland (Space Telescope Science Institute) Alan Gould (Lawrence Hall of Science) Steve B. Howell (National Optical Astronomy Observatory) Jon M. Jenkins (SETI Institute) Hans Kjeldsen (University of Aarhus) David W. Latham (Harvard-Smithsonian Centre for Astrophysics) Jack J. Lissauer (NASA Ames Research Centre) Geoffrey W. Marcy (University of California, Berkeley) Soren Meibom (Harvard-Smithsonian Centre for Astrophysics) David G. Monet (US Naval Observatory, Flagstaff Station) Jason F. Rowe (SETI Institute) Dimitar D. Sasselov (Harvard-Smithsonian Centre for Astrophysics) et al. (8 additional authors not shown)

We announce the discovery of Kepler-6b, a transiting hot Jupiter orbiting a star with unusually high metallicity, [Fe/H] = +0.34 ±0.04. The planet's mass is about 2/3 that of Jupiter, Mp = 0.67 Mj, and the radius is thirty percent larger than that of Jupiter, Rp = 1.32 Rj, resulting in a density of 0.35 g/cc, a fairly typical value for such a planet. The orbital period is P = 3.235 days. The host star is both more massive than the Sun, Mstar = 1.21 Msun, and larger than the Sun, Rstar = 1.39 Rsun.

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