K2-187
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cancer |
| Right ascension | 08h 50m 05.668s |
| Declination | +23° 11′ 33.36″ |
| Apparent magnitude (V) | 13.081 |
| Characteristics | |
| Evolutionary stage | main sequence |
| Spectral type | G7 |
| Astrometry | |
| Proper motion (μ) | RA: −11.872 mas/yr Dec.: −30.597 mas/yr |
| Parallax (π) | 3.0740±0.0192 mas |
| Distance | 1,061 ± 7 ly (325 ± 2 pc) |
| Details | |
| Mass | 0.967+0.025 −0.024 M☉ |
| Radius | 0.895+0.041 −0.026 R☉ |
| Luminosity | 0.62 L☉ |
| Temperature | 5,477±50 K |
| Metallicity [Fe/H] | +0.26±0.08 dex |
| Rotation | 20.34 days |
| Rotational velocity (v sin i) | 45 km/s |
| Age | 1.85 Gyr |
| Other designations | |
| EPIC 212157262, K2-187, WISE J085005.65+231133.0, 2MASS J08500566+2311333 | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
K2-187, also known as EPIC 212157262, is a Sun-like star in K2 Campaign 5. It is very close in size and temperature to the Sun, and has a system of four confirmed exoplanets ranging between 1.4 R🜨 and 3.2 R🜨. The innermost planet takes just 18 hours to orbit its star, while the outermost planet orbits every 2 weeks.