Discovery[1] | |
---|---|
Discovered by | L. Buchhave et al. |
Discovery site | Kepler spacecraft |
Discovery date | Paper submitted 27 June 2011 |
Transit method | |
Orbital characteristics | |
Eccentricity | 0.035 (± 0.02)[2] |
6.7901236131±0.0000003985[3] d | |
Inclination | 90.0 +0.0 −2.8[1] |
Star | Kepler-14A (KOI-98) |
Physical characteristics | |
1.136 +0.073 −0.054[1] RJ | |
Mass | 8.40 +0.19 −0.18[1] MJ |
Mean density | 7.1 (± 1.1)[1] g cm−3 |
Kepler-14b is an extrasolar planet in orbit around the primary star of the binary Kepler-14 system. It is currently the only planet known to exist in this star system. Kepler-14b is 8.4 times the mass of Jupiter and has a radius 1.14 times that of Jupiter, and it orbits its host star every 6.79 days.[1] It was discovered by NASA-led Kepler mission, which noted the planet as a planetary candidate as early as March 2009, around the same time as the discovery of the first five planets discovered by Kepler (Kepler-4b to Kepler-8b). However, the team was unable to confirm the planet until extensive follow-up observations, as high-resolution imaging resolved the star Kepler-14 as a closely orbiting binary system. The Kepler team would have not noticed that Kepler-14 was a binary star based solely on initial radial velocity measurements (a standard method for confirming a planet's existence), and found that if they had not realized this, their data on Kepler-14b would have been very inaccurate.