Kepler-19c is an extra-solar planet orbiting the star Kepler-19 approximately 717 light years from Earth.[3]
![]() Kepler-19c | |
Discovery | |
---|---|
Discovered by | Sarah Ballard et al.[1] |
Discovery date | 2011[1] |
Detection method | Transit timing variation |
Orbital characteristics | |
Orbital period (sidereal) | 28.731+0.012 −0.005 d[2] |
Physical characteristics | |
Mass | 13.1±2.7 Earth masses[2] |
The planet was discovered as a result of examinations of data from the previously discovered exoplanet, Kepler-19b. Timing variations in the orbital period of the first planet necessitated gravitational forces to be acting upon the planet, resulting from an additional body in the vicinity, acting to cause a variation of transition of five minutes per orbit.[1][4] The lead author of the paper announcing the discovery was Sarah Ballard.[5]