Kepler-65
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Lyra |
| Right ascension | 19h 14m 45.2920s[1] |
| Declination | +41° 09′ 04.207″[1] |
| Apparent magnitude (V) | 11.018 |
| Characteristics | |
| Evolutionary stage | Subgiant |
| Spectral type | F6IV |
| Astrometry | |
| Proper motion (μ) | RA: 0.970±0.056[1] mas/yr Dec.: −14.189±0.056[1] mas/yr |
| Parallax (π) | 3.2638 ± 0.0289[1] mas |
| Distance | 999 ± 9 ly (306 ± 3 pc) |
| Details | |
| Mass | 1.25 M☉ |
| Radius | 1.41 R☉ |
| Temperature | 6211 K |
| Metallicity [Fe/H] | +0.17 dex |
| Rotation | 7.911±0.155 days[2] |
| Other designations | |
| Database references | |
| SIMBAD | data |
| KIC | data |
Kepler-65 is a subgiant star slightly more massive than the Sun and has at least four planets.
Planetary system[]
Three transiting planets were announced in 2013. A fourth non-transiting planet was discovered using radial velocity measurements in 2019.[4] The first three planets orbit very close to their star. Initial follow-up radial velocity measurements provided data too noisy to constrain the mass of planets.[5] Follow-up transit-timing variation analysis helped to measure the mass of Kepler-65d which revealed that it has significantly lower density than Earth.[6]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 2.4+2.4 −1.6 M |