Kepler-43
G-type star in the constellation Lyra
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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.
| Observation data Epoch J2000 Equinox ICRS | |
|---|---|
| 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 |
Planetary system
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 | — | — | — |