| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Sextans |
| Right ascension | 10h 42m 22.6343s[1] |
| Declination | +04° 26′ 28.886″[1] |
| Apparent magnitude (V) | 14.549[2] |
| Characteristics | |
| Evolutionary stage | Main sequence |
| Spectral type | M3V[2] |
| Astrometry | |
| Radial velocity (Rv) | −21.15(99)[1] km/s |
| Proper motion (μ) | RA: −42.338(19) mas/yr[1] Dec.: 4.147(22) mas/yr[1] |
| Parallax (π) | 32.1290 ± 0.0190 mas[1] |
| Distance | 101.51 ± 0.06 ly (31.12 ± 0.02 pc) |
| Details | |
| Mass | 0.40 ± 0.01[2] M☉ |
| Radius | 0.36 ± 0.01[2] R☉ |
| Luminosity | 0.016 ± 0.001[2] L☉ |
| Surface gravity (log g) | 4.9 ± 0.1[2] cgs |
| Temperature | 3420 ± 18[2] K |
| Metallicity [Fe/H] | -0.1 ± 0.1[2] dex |
| Other designations | |
EPIC 248545986 | |
| Database references | |
| SIMBAD | data |
K2-239 (also designated EPIC 248545986) is a small red dwarf star in the constellation Sextans, about 32 parsecs (101 light-years) away from Earth.[1] Observed by the Kepler Space Telescope during Campaign 14 of its K2 "Second Light" mission, it was found to have three hot, likely rocky Earth-sized planets in orbit around it.[2][3]
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