K2-288
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Taurus[1] |
| Right ascension | 03h 41m 46.43s[2] |
| Declination | +18° 16′ 08.0″[2] |
| Apparent magnitude (V) | 13.97[3] |
| Characteristics | |
| Spectral type | M2 V[2] + M3 V[2] |
| Orbit[2] | |
| Primary | K2-288 A |
| Companion | K2-288 B |
| Semi-major axis (a) | 55 AU |
| Details[2] | |
| K2-288 A | |
| Mass | 0.52±0.02 M☉ |
| Radius | 0.45±0.03 R☉ |
| Surface gravity (log g) | 4.85±0.03 cgs |
| Temperature | 3584±205 K |
| Metallicity [Fe/H] | −0.29±0.09 dex |
| K2-288 B | |
| Mass | 0.33±0.02 M☉ |
| Radius | 0.32±0.03 R☉ |
| Surface gravity (log g) | 4.96±0.02 cgs |
| Temperature | 3341±276 K |
| Metallicity [Fe/H] | −0.21±0.09 dex |
| Database references | |
| SIMBAD | data |
K2-288 is a binary star system consisting of two red dwarfs. The companion star, K2-288B, is known to host a single planet, K2-288Bb.
