Kepler-9 c
Description: Kepler-9c is one of the first seven extrasolar planets, exoplanets, discovered by NASA's Kepler Mission, and one of at least two planets orbiting the star Kepler-9. Kepler-9c and Kepler-9b were the first exoplanets confirmed to be transiting their star. The planet's discovery was announced by the Kepler Mission team on August 26, 2010 after its initial discovery by Kepler. At the time, it was one of 700 planetary candidates noted by Kepler.
Physical Properties
Mass (Jupiter mass): 0.0940754491394771 MJ
Radius (Jupiter radius): 0.721 RJ
Density: 0.31 g/cm³
Equilibrium Temperature: 523.0 K
Orbital Parameters
Orbital Period: 38.9853 days
Semi-major Axis: 0.227 AU
Eccentricity: 0.06691
Inclination: 89.188°
Host Star Properties
Host Star: Kepler-9
Spectral Type: Unknown
Temperature: 5774.0 K
Stellar Mass: 1.02 M☉
Stellar Radius: 0.96 R☉
Discovery Information
Planet Letter: c
Object ID: 3.964
Host ID: 2.425688
Discovery Date: 2010-10
Discovery Year: 2010
Discovery Method: Transit
Discovery Locale: Space
Discovery Facility: Kepler
Discovery Instrument: Kepler CCD Array