Kepler-438
Kepler-438 is a red dwarf in the constellation Lyra, about 590 light years from Earth. It is notable for its planetary system, which includes Kepler-438b, a possibly Earth-size planet within Kepler-438's habitable zone.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Lyra |
| Right ascension | 18h 46m 34.9968s |
| Declination | +41° 57′ 03.934″ |
| Apparent magnitude (V) | 15.0 |
| Astrometry | |
| Proper motion (μ) | RA: −16.649(115) mas/yr Dec.: −5.614(111) mas/yr |
| Parallax (π) | 5.5592 ± 0.0984 mas |
| Distance | 590 ± 10 ly (180 ± 3 pc) |
| Absolute magnitude (MV) | 9.55+0.54 −0.44 |
| Details | |
| Mass | 0.544+0.061 −0.041 M☉ |
| Radius | 0.52+0.061 −0.038 R☉ |
| Luminosity | 0.044+0.017 −0.012 L☉ |
| Surface gravity (log g) | 4.74 cgs |
| Temperature | 3748±112 K |
| Metallicity [Fe/H] | 0.16±0.14 dex |
| Age | 4.4+0.7 −0.8 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
| KIC | data |
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