Epoch J2000 Equinox J2000
|Right ascension||19h 24m 07.7660s|
|Declination||+49° 02′ 24.9282″|
|Apparent magnitude (V)||10.08|
|Evolutionary stage||Main sequence|
|Spectral type||G1V C|
|Proper motion (μ)|| RA: −7.334 ± 0.039 mas/yr |
Dec.: −10.430 ± 0.048 mas/yr
|Parallax (π)||6.9076 ± 0.0208 mas|
|Distance||472 ± 1 ly |
(144.8 ± 0.4 pc)
|Metallicity [Fe/H]||0.12 (± 0.074) dex|
|Rotational velocity (v sin i)||2.4±0.5 km/s|
High resolution imaging observations of Kepler-68 carried out with the lucky imaging instrument AstraLux on the 2.2m telescope at Calar Alto Observatory detected a wide companion candidate approximately 11 arcseconds away. Comparing these observations to the 2MASS positions shows that the companions proper motion is consistent with it being bound to the Kepler-68 system, but further observations are needed to confirm this conclusion. Eleven arcseconds at the distance of Kepler-68 leads to a sky projected separation of approximately 1600 Astronomical units. A circular orbit at that distance would have a period of roughly 50,000 years.
(in order from star)
Currently, three planets have been discovered to orbit around Kepler-68. Two of the innermost planets were discovered by the planetary transit method. Follow-up Doppler measurements helped to determine the mass of Kepler-68b and helped to discover Kepler-68d. There is an additional signal present in the radial velocity measurements indicating another body in the system at a period of greater than 10 years. The mass of this object is unknown and it could be either another planet or a stellar companion.