Gliese 367
Gliese 367 (GJ 367, formally named Añañuca) is a red dwarf star 30.7 light-years (9.4 parsecs) from Earth in the constellation of Vela. It is suspected to be a variable with amplitude 0.012 stellar magnitude and period 5.16 years. A stellar multiplicity survey in 2015 failed to detect any stellar companions to Gliese 367. It hosts three known exoplanets, Gliese 367 b, c & d.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Vela |
| Right ascension | 09h 44m 29.83677s |
| Declination | −45° 46′ 35.4276″ |
| Apparent magnitude (V) | 10.153±0.044 |
| Characteristics | |
| Evolutionary stage | Main sequence |
| Spectral type | M1.0V |
| Astrometry | |
| Radial velocity (Rv) | 47.42±0.14 km/s |
| Proper motion (μ) | RA: −462.621(14) mas/yr Dec.: −582.668(15) mas/yr |
| Parallax (π) | 106.1727 ± 0.0141 mas |
| Distance | 30.719 ± 0.004 ly (9.419 ± 0.001 pc) |
| Details | |
| Mass | 0.454±0.011 M☉ |
| Radius | 0.457±0.013 R☉ |
| Luminosity | 0.0288±0.0027 L☉ |
| Surface gravity (log g) | 4.777±0.026 cgs |
| Temperature | 3522±70 K |
| Metallicity [Fe/H] | −0.01±0.12 dex |
| Rotation | 48±2 d |
| Rotational velocity (v sin i) | 0.48±0.02 km/s |
| Age | 8.0+3.8 −4.6, 0.057+0.003 −0.002 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
Gliese 367's age is unclear. Modelling using stellar isochrones gives a young age of less than 60 million years old, but its orbit around the Milky Way is highly eccentric, unusual for a young star. It may have been forced into such an orbit via a gravitational encounter. Spectroscopic evidence presented in a 2023 study supports an old age for Gliese 367.: 6
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