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: −3.443±0.049[1] mas/yr Dec.: −8.784±0.045[1] mas/yr |
| Parallax (π) | 0.8030 ± 0.0256 mas[1] |
| 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 |
| 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 edit
| 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 edit
- ^ a b c d e Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
- ^ McQuillan, A.; Mazeh, T.; Aigrain, S. (2013). "Stellar Rotation Periods of The Kepler objects of Interest: A Dearth of Close-In Planets Around Fast Rotators". The Astrophysical Journal Letters. 775 (1). L11. arXiv:1308.1845. Bibcode:2013ApJ...775L..11M. doi:10.1088/2041-8205/775/1/L11. S2CID 118557681.
- ^ "KOI-1958". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 14 February 2018.