| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Lyra [1] |
| Right ascension | 19h 00m 57.8034s [2] |
| Declination | +46° 40′ 05.666″ [2] |
| Apparent magnitude (V) | 14.08 [3] |
| Characteristics | |
| Evolutionary stage | subgiant [2] |
| Spectral type | G0V~G0IV [4] |
| Astrometry | |
| Proper motion (μ) | RA: −2.982(14) mas/yr [2] Dec.: 0.126(14) mas/yr [2] |
| Parallax (π) | 0.9846±0.0116 mas [2] |
| Distance | 3,310 ± 40 ly (1,020 ± 10 pc) |
| Details | |
| Mass | 1.32±0.09 [4] M☉ |
| Radius | 1.42±0.07 [4] R☉ |
| Luminosity | 1.95 [5] L☉ |
| Surface gravity (log g) | 4.26±0.05 [6] cgs |
| Temperature | 6,041±123 [4] K |
| Metallicity [Fe/H] | 0.33±0.11 [4] dex |
| Rotation | 12.851±0.053 days [7] |
| Rotational velocity (v sin i) | 5.5±1.5 [4] km/s |
| Age | 2.8+1.0 −0.8 [4] Gyr |
| Other designations | |
| Kepler-43, KOI-135, KIC 9818381 | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
| KIC | data |
Kepler-43, formerly known as KOI-135, is a star in the northern constellation of Lyra. At 14th magnitude, it is too faint to be seen with the naked eye.
The Kepler spacecraft detected a transiting planet candidate around this star that was confirmed by radial velocity measurements taken by the SOPHIE spectrograph mounted on the 1.93 m telescope at the Haute-Provence Observatory. [4]
The planet nightside temperature was measured to be 2,043+79
−352 K . [6]
| Companion (in order from star) | Mass | Semimajor axis (AU) | Orbital period (days) | Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 3.23±0.19 MJ | 0.0449 | 3.0240949±0.0000006 | — | — | — |