Description: Kepler-1647b is a circumbinary exoplanet that orbits the binary star system Kepler-1647, located 3,700 light-years (1,100 pc) from Earth in the constellation Cygnus. It was announced on June 13, 2016, in San Diego at a meeting of the American Astronomical Society. It was detected using the transit method, when it caused the dimming of the primary star, and then again of the secondary star blended with the primary star eclipse. The first transit of the planet was identified in 2012, but at the time the single event was not enough to rule out contamination, or confirm it as a planet. It was discovered by the analysis of the Kepler light-curve, which showed the planet in transit.
Mass (Jupiter mass): 1.51968033225309 MJ
Radius (Jupiter radius): 1.059 RJ
Density: 1.59 g/cm³
Equilibrium Temperature: Unknown
Orbital Period: 1107.5923 days
Semi-major Axis: 2.7205 AU
Eccentricity: 0.0581
Inclination: 90.097°
Host Star: Kepler-1647
Spectral Type: Unknown
Temperature: 6210.0 K
Stellar Mass: 1.22 M☉
Stellar Radius: 1.79 R☉
Planet Letter: b
Object ID: 3.11889
Host ID: 2.46192
Discovery Date: 2016-08
Discovery Year: 2016
Discovery Method: Transit
Discovery Locale: Space
Discovery Facility: Kepler
Discovery Instrument: Kepler CCD Array