K2-58
Coordinates: 
22h 15m 17.2364s, −14° 02′ 59.3151″
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquarius |
| Right ascension | 22h 15m 17.2364s[1] |
| Declination | −14° 02′ 59.3151″[1] |
| Apparent magnitude (V) | 12.13 |
| Characteristics | |
| Evolutionary stage | Main sequence |
| Spectral type | K2 |
| Astrometry | |
| Radial velocity (Rv) | 6.5±0.8 km/s |
| Proper motion (μ) | RA: 4.67±0.02[2] mas/yr Dec.: -11.11±0.02[2] mas/yr |
| Parallax (π) | 5.4932 ± 0.0194[2] mas |
| Distance | 594 ± 2 ly (182.0 ± 0.6 pc) |
| Details[3] | |
| Mass | 0.858+0.022 −0.027[4] M☉ |
| Radius | 0.803+0.034 −0.020[4] R☉ |
| Surface gravity (log g) | 4.5 cgs |
| Temperature | 5038 K |
| Metallicity [Fe/H] | 0.25 dex |
| Rotational velocity (v sin i) | 2.2±0.5 km/s |
| Other designations | |
EPIC 206026904, 2MASS J22151722-1402593, Gaia DR2 2599975224481836672 | |
| Database references | |
| SIMBAD | data |
K2-58 (also designated as EPIC 206026904) is G-type main-sequence star in the constellation of Aquarius, approximately 596 light-years from Solar System. The star is metal-rich, having 155% of Solar abundance of elements heavier than helium.[3] The star is located in the region allowing to see Venus transiting the Sun for hypothetical observer located in K2-58 system.[5]
Planetary system[]
The planetary system has three confirmed exoplanets (named as K2-58 b, K2-58 c, K2-58 d),[6][7][8] discovered in 2016.[9]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| — | 0.0350 | 2.53726 | — | 86.1+2.8 −7.3° |
1.62 R
|