Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Cygnus[1] |
Right ascension | 20h 26m 05.30213s[2] |
Declination | +58° 34′ 22.6804″[2] |
Apparent magnitude (V) | 14.2[3] |
Characteristics | |
Evolutionary stage | Main sequence |
Spectral type | M5.0V[4] |
Apparent magnitude (G) | 12.352±0.003[2] |
Apparent magnitude (J) | 9.029±0.039[5] |
Apparent magnitude (H) | 8.483±0.073[5] |
Apparent magnitude (K) | 8.095±0.021[5] |
Astrometry | |
Radial velocity (Rv) | −60.26±0.54[2] km/s |
Proper motion (μ) | RA: 261.038 mas/yr[2] Dec.: 542.906 mas/yr[2] |
Parallax (π) | 104.4415 ± 0.0261 mas[2] |
Distance | 31.229 ± 0.008 ly (9.575 ± 0.002 pc) |
Absolute magnitude (MV) | 14.3[3] |
Details[4] | |
Mass | 0.167±0.011 M☉ |
Radius | 0.1813±0.0063 R☉ |
Luminosity (bolometric) | 0.002944±0.000028 L☉ |
Habitable zone inner limit | 0.056 AU |
Habitable zone outer limit | 0.111 AU |
Surface gravity (log g) | 4.93±0.06 cgs |
Temperature | 3158±54 K |
Metallicity [Fe/H] | 0.07±0.19 dex |
Rotation | 150–170 days |
Rotational velocity (v sin i) | <2 km/s |
Other designations | |
Database references | |
SIMBAD | data |
Wolf 1069 is a red dwarf star located 31.2 light-years (9.6 parsecs) away from the Solar System in the constellation of Cygnus. The star has 17% the mass and 18% the radius of the Sun, a temperature of 3,158 K (2,885 °C; 5,225 °F), and a slow rotation period of 150–170 days. It hosts one known exoplanet called Wolf 1069 b which could possibly sustain life.[4]
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