Kepler-18
Kepler-18 is a star with almost the same mass as the Sun in the Cygnus constellation.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cygnus |
| Right ascension | 19h 52m 19.0688s |
| Declination | +44° 44′ 46.808″ |
| Apparent magnitude (V) | 14.0 |
| Characteristics | |
| Spectral type | G7 |
| Astrometry | |
| Proper motion (μ) | RA: −1.432±0.031 mas/yr Dec.: −20.313±0.028 mas/yr |
| Parallax (π) | 2.2804 ± 0.0168 mas |
| Distance | 1,430 ± 10 ly (439 ± 3 pc) |
| Details | |
| Mass | 0.972 ± 0.042 M☉ |
| Radius | 1.108 ± 0.051 R☉ |
| Luminosity | 0.93 L☉ |
| Surface gravity (log g) | 4.32 ± 0.12 cgs |
| Temperature | 5383 ± 44 K |
| Metallicity [Fe/H] | 0.19 ± 0.06 dex |
| Rotational velocity (v sin i) | <4 km/s |
| Age | 10.0 ± 2.3 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
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