Kepler-66
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cygnus |
| Right ascension | 19h 35m 55.5743s[1] |
| Declination | +46° 41′ 15.957″[1] |
| Apparent magnitude (V) | 15.3 |
| Characteristics | |
| Spectral type | G0V |
| Astrometry | |
| Proper motion (μ) | RA: −3.443±0.049[1] mas/yr Dec.: −8.784±0.045[1] mas/yr |
| Parallax (π) | 0.8030 ± 0.0256[1] mas |
| Distance | 4,100 ± 100 ly (1,250 ± 40 pc) |
| Details | |
| Mass | 1.038 ± 0.044 M☉ |
| Radius | 0.966 ± 0.042 R☉ |
| Temperature | 5962 ± 79 K K |
| Metallicity [Fe/H] | 0.012 ± 0.003 dex |
| Rotation | 10.527±0.011 days[2] |
| Age | 1 ± 0.17 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Extrasolar Planets Encyclopaedia | data |
Kepler-66 is a star with slightly more mass than the Sun in the NGC 6811 open cluster in the Cygnus constellation. It has one confirmed planet, slightly smaller than Neptune, announced in 2013.
Planetary system[]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 0.31 MJ | 0.1352 | 17.815815 | — | — | 2.80 R
|