| Kepler-68d | |
| Apsis: | astron |
| Discovered: | February 12, 2013 |
| Discovery Method: | Radial velocity |
| Periastron: | 1.148 AU |
| Apoastron: | 1.652 AU |
| Semimajor: | 1.4±0.03 AU[1] |
| Eccentricity: | 0.18 ± 0.05 |
| Period: | 580±50 d |
| Mass: | ≥0.947 Mj |
Kepler-68d is a gas giant with the 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 habitable zone of the star. It was detected by radial velocity.[2]
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.