Kepler-43
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Lyra | 
| Right ascension | 19h 00m 57.8034s | 
| Declination | +46° 40′ 05.666″ | 
| Apparent magnitude (V) | 14.08 | 
| Characteristics | |
| Evolutionary stage | subgiant | 
| Spectral type | G0V~G0IV | 
| Astrometry | |
| Proper motion (μ) | RA: −2.982(14) mas/yr Dec.: 0.126(14) mas/yr | 
| Parallax (π) | 0.9846±0.0116 mas | 
| Distance | 3,310 ± 40 ly (1,020 ± 10 pc) | 
| Details | |
| Mass | 1.32±0.09 M☉ | 
| Radius | 1.42±0.07 R☉ | 
| Luminosity | 1.95 L☉ | 
| Surface gravity (log g) | 4.26±0.05 cgs | 
| Temperature | 6,041±123 K | 
| Metallicity [Fe/H] | 0.33±0.11 dex | 
| Rotation | 12.851±0.053 days | 
| Rotational velocity (v sin i) | 5.5±1.5 km/s | 
| Age | 2.8+1.0 −0.8 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.
Kepler-43 has a very strong starspot activity.