Kepler-107
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cygnus |
| Right ascension | 19h 48m 06.7736s[1] |
| Declination | +48° 12′ 30.9619″[1] |
| Apparent magnitude (V) | B= 13.34, V= 12.70, J= 11.39, K= 11.06[2] |
| Characteristics | |
| Spectral type | G2V[2] |
| Astrometry | |
| Radial velocity (Rv) | 5.64423 ± 4.5 × 10–4[2] km/s |
| Proper motion (μ) | RA: −9.480±0.036[1] mas/yr Dec.: 0.321±0.043[1] mas/yr |
| Parallax (π) | 1.8725 ± 0.0202[1] mas |
| Distance | 1713.9518 ± 17.9386 ly (525.5 ± 5.5[2] pc) |
| Details | |
| Mass | 1.238 ± 0.029[2] M☉ |
| Radius | 1.447 ± 0.014[2] R☉ |
| Surface gravity (log g) | (Spectroscopic) 4.28 ± 0.10 cgs (Asteroseismic ) 4.210 ± 0.013[2] cgs |
| Temperature | 5854 ± 61[2] K |
| Metallicity [Fe/H] | 0.321 ± 0.065[2] dex |
| Rotational velocity (v sin i) | 3.6 ± 0.5[2] km/s |
| Age | 4.29 +0.56 −0.70[2] Gyr |
| Other designations | |
Kepler-107, KOI-117, Gaia DR2 2086625752425381632, KIC 10875245, 2MASS J19480677+4812309[3] | |
| Database references | |
| SIMBAD | data |
Kepler-107 is a star in the constellation Cygnus. It is a spectral type G2 star. The imaging survey in 2016 has failed to find any stellar companions to it.[4]
Planetary system[]
Kepler-107 has four known planets discovered in 2014.[5] A giant impact is the likely origin of two planets in the system. Kepler-107 c is more than twice as dense (about 12.6 g cm−3) as the innermost Kepler-107 b (about 5.3 g cm−3).[2]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 0.01167 MJ→3.51 ± 1.52 M
|