Gliese 367
Red dwarf star in the constellation Vela / From Wikipedia, the free encyclopedia
Gliese 367 (GJ 367, formally named Añañuca[5]) 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.[6] A stellar multiplicity survey in 2015 failed to detect any stellar companions to Gliese 367.[7] It hosts three known exoplanets, Gliese 367 b, c & d.[8]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Vela |
Right ascension | 09h 44m 29.83677s[1] |
Declination | −45° 46′ 35.4276″[1] |
Apparent magnitude (V) | 10.153±0.044[2] |
Characteristics | |
Evolutionary stage | Main sequence |
Spectral type | M1.0V[2] |
Astrometry | |
Radial velocity (Rv) | 47.42±0.14[1] km/s |
Proper motion (μ) | RA: −462.621(14) mas/yr[1] Dec.: −582.668(15) mas/yr[1] |
Parallax (π) | 106.1727 ± 0.0141 mas[1] |
Distance | 30.719 ± 0.004 ly (9.419 ± 0.001 pc) |
Details[2] | |
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,[2] 0.057+0.003 −0.002[3] 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.[3] It may have been forced into such an orbit via a gravitational encounter.[3] Spectroscopic evidence presented in a 2023 study supports an old age for Gliese 367.[8]: 6