Kepler-68d
| Discovery | |
|---|---|
| Discovery date | February 12, 2013 |
| Radial velocity | |
| Orbital characteristics | |
| Periastron | 1.148 AU |
| Apoastron | 1.652 AU |
| 1.4±0.03 AU | |
| Eccentricity | 0.18 ± 0.05 |
| 580±50 d | |
| Physical characteristics | |
| Mass | ≥0.947 Mj |
Kepler-68d is a gas giant with a minimum mass about the same as Jupiter. It is at least a jovian-mass planet orbiting 1.4 astronomical units from its parent star, Kepler-68, well within the habitable zone of the star. It was detected by radial velocity.
After planets Kepler-68b and c were detected by observing planetary transits in front of its star, doppler spectroscopy measurements were used to make follow-up observations of the star. Kepler-68d was discovered using that method.