K2-58
Coordinates: 
22h 15m 17.2364s, −14° 02′ 59.3151″
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 | |
| Details 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 |
|---|---|---|---|---|---|---|
| K2-58c | — | 0.0350 | 2.53726 | — | 86.1+2.8 −7.3° |
1.62 R🜨 |
| K2-58b | — | 0.0692 | 7.05254 | — | 88.9+0.8 −1.6° |
2.68 R🜨 |
| K2-58d | — | 0.1517 | 22.8827 | — | 89.43+0.41 −0.81° |
1.71 R🜨 |
References
- ^ a b "K2-58". SIMBAD. Centre de données astronomiques de Strasbourg.
- ^ .
- ^ S2CID 119431797
- ^ S2CID 85524387
- S2CID 198901606
- ^ "Exoplanet-catalog". Exoplanet Exploration: Planets Beyond our Solar System. Retrieved 2019-07-16.
- ^ "EPIC 206026904". www.cfa.harvard.edu. Retrieved 2019-07-16.
- ^ "Open Exoplanet Catalogue - K2-58 b". www.openexoplanetcatalogue.com. Retrieved 2019-07-16.
- ^ S2CID 56125109
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