HAT-P20b orbits its host star at around P = 2.875317 ± 0.000004d, transit epoch Tc = 2455080.92661 ± 0.00021 (BJDUTC), with a transit time of 0.0770 ± 0.0008d. It orbits a medium bright V = 11.339 K3 dwarf GSC 1910-00239. The host star has a mass of 0.76 ± 0.03M⊙, a radius of 0.69 ± 0.02R⊙, an effective temperature of 4595 ± 80K, and a metallicity of [Fe / H] = + 0.35 ± 0.08. The mass of the planet is 7.246 ± 0.187 MJ, with a radius of 0.867 ± 0.033 RJ, and an average density of 13.78 ± 1.50 g cm-3, which is the second-highest of all known exoplanets.
Journal Articles
1.) HAT-P-20b–HAT-P-23b: FOUR MASSIVE TRANSITING EXTRASOLAR PLANETS
WEB Articles
