K2-229
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Virgo |
| Right ascension | 12h 27m 29.5848s[1] |
| Declination | −06° 43′ 18.7660″[1] |
| Apparent magnitude (V) | 10.985 |
| Characteristics | |
| Evolutionary stage | Main sequence |
| Spectral type | K2V[2] |
| Astrometry | |
| Proper motion (μ) | RA: −80.886±0.131[1] mas/yr Dec.: 7.434±0.090[1] mas/yr |
| Parallax (π) | 9.7229 ± 0.1020[1] mas |
| Distance | 335 ± 4 ly (103 ± 1 pc) |
| Details | |
| Mass | 0.837 +0.019 −0.025[2] M☉ |
| Radius | 0.793 +0.032 −0.020[2] R☉ |
| Luminosity | ~0.407[3] L☉ |
| Surface gravity (log g) | 4.56 +0.03 −0.05[2] cgs |
| Temperature | 5185 ± 32[2] K |
| Metallicity [Fe/H] | −0.06 ± 0.02[2] dex |
| Rotation | 18.1 ± 0.3 days[2] |
| Rotational velocity (v sin i) | 2.4 ± 0.5[2] km/s |
| Age | 5.4 +5.2 −3.7[2] Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
K2-229 (also designated EPIC 228801451 or TYC 4947-834-1) is a K-type main sequence star approximately 103 parsecs (335 light years) away in the constellation Virgo. It was observed by the Kepler Space Telescope during its K2 "Second Light" mission in Campaign 10, and has a system of three confirmed exoplanets.
Planetary System[]
As of March 27, 2018, K2-229 has a system of three confirmed planets.
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 2.59 (± 0.43) M
|