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.
| 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: −3.464(23) mas/yr[1] Dec.: −8.800(23) mas/yr[1] |
| Parallax (π) | 0.8430 ± 0.0205 mas[1] |
| Distance | 3,870 ± 90 ly (1,190 ± 30 pc) |
| Details | |
| Mass | 1.038 ± 0.044 M☉ |
| Radius | 0.966 ± 0.042 R☉ |
| Temperature | 5962 ± 79 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 |
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🜨 |
References
External links
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