_b.png) Artistic depiction of Kepler-1647b (left) orbiting its parent stars (center). | |
| Discovery | |
|---|---|
| Discovery site | Kepler Space Observatory |
| Discovery date | June 13, 2016 |
| Transit | |
| Orbital characteristics | |
| 2.7205 ± 0.007 AU (406,980,000 ± 1,050,000 km)[1] | |
| Eccentricity | 0.0581[1] |
| 1107.6±0.023[1] d | |
| Inclination | ~90.1[1] |
| Star | Kepler-1647 |
| Physical characteristics | |
| 1.06±0.0123 RJ | |
| Mass | 1.52±0.65 MJ |
Kepler-1647b (sometimes named Kepler-1647(AB)b to distinguish it from the secondary component) 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.[2] It was announced on June 13, 2016, in San Diego at a meeting of the American Astronomical Society.[2] 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.[3] 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.[3] It was discovered by the analysis of the Kepler light-curve, which showed the planet in transit.
- ^ a b c d Cite error: The named reference
NASA-Exoplanet-Archivewas invoked but never defined (see the help page). - ^ a b "New Planet Is Largest Discovered That Orbits Two Suns". NASA. June 13, 2016. Retrieved June 14, 2016.
- ^ a b Kostov, Veselin B.; Orosz, Jerome A.; Welsh, William F.; Doyle, Laurance R.; Fabrycky, Daniel C.; Haghighipour, Nader; Quarles, Billy; Short, Donald R.; Cochran, William D.; Endl, Michael; Ford, Eric B.; Gregorio, Joao; Hinse, Tobias C.; Isaacson, Howard; Jenkins, Jon M.; et al. (2015). "Kepler-1647b: the largest and longest-period Kepler transiting circumbinary planet". The Astrophysical Journal. 827 (1): 86. arXiv:1512.00189. Bibcode:2016ApJ...827...86K. doi:10.3847/0004-637X/827/1/86. S2CID 55162101.