Gliese 367 information

Gliese 367 / Añañuca
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
	Añañuca, CD−45 5378, GJ 367, HIP 47780, TOI-731, TIC 34068865, TYC 8168-2031-1, 2MASS J09442986-4546351
Database references
SIMBAD	data

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]

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

^ ^a ^b ^c ^d ^e Cite error: The named reference DR3 was invoked but never defined (see the help page).
^ ^a ^b ^c ^d Cite error: The named reference Lam2021 was invoked but never defined (see the help page).
^ ^a ^b ^c Cite error: The named reference Brandner was invoked but never defined (see the help page).
^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
^ Cite error: The named reference NEW2022 was invoked but never defined (see the help page).
^ Hosey, Altonio D.; Henry, Todd J.; Jao, Wei-Chun; Dieterich, Sergio B.; Winters, Jennifer G.; Lurie, John C.; Riedel, Adric R.; Subasavage, John P. (2015). "The Solar Neighborhood XXXVI. The Long-Term Photometric Variability of Nearby Red Dwarfs in the V RI Optical Bands". The Astronomical Journal. 150 (1): 6. arXiv:1503.02100. Bibcode:2015AJ....150....6H. doi:10.1088/0004-6256/150/1/6. S2CID 13913564.
^ Ward-Duong, K.; Patience, J.; De Rosa, R. J.; Bulger, J.; Rajan, A.; Goodwin, S. P.; Parker, Richard J.; McCarthy, D. W.; Kulesa, C. (2015). "The M-dwarfs in Multiples (Min Ms) survey – I. Stellar multiplicity among low-mass stars within 15 pc★". Monthly Notices of the Royal Astronomical Society. 449 (3): 2618–2637. arXiv:1503.00724. Bibcode:2015MNRAS.449.2618W. doi:10.1093/mnras/stv384.
^ ^a ^b Cite error: The named reference Goffo2023 was invoked but never defined (see the help page).

[DR3-1] Cite error: The named reference DR3 was invoked but never defined (see the help page).

[Lam2021-2] Cite error: The named reference Lam2021 was invoked but never defined (see the help page).

[Brandner-3] Cite error: The named reference Brandner was invoked but never defined (see the help page).

[SIMBAD-4] Cite error: The named reference SIMBAD was invoked but never defined (see the help page).

[NEW2022-5] Cite error: The named reference NEW2022 was invoked but never defined (see the help page).

[6] Hosey, Altonio D.; Henry, Todd J.; Jao, Wei-Chun; Dieterich, Sergio B.; Winters, Jennifer G.; Lurie, John C.; Riedel, Adric R.; Subasavage, John P. (2015). "The Solar Neighborhood XXXVI. The Long-Term Photometric Variability of Nearby Red Dwarfs in the V RI Optical Bands". The Astronomical Journal. 150 (1): 6. arXiv:1503.02100. Bibcode:2015AJ....150....6H. doi:10.1088/0004-6256/150/1/6. S2CID 13913564.

[7] Ward-Duong, K.; Patience, J.; De Rosa, R. J.; Bulger, J.; Rajan, A.; Goodwin, S. P.; Parker, Richard J.; McCarthy, D. W.; Kulesa, C. (2015). "The M-dwarfs in Multiples (Min Ms) survey – I. Stellar multiplicity among low-mass stars within 15 pc★". Monthly Notices of the Royal Astronomical Society. 449 (3): 2618–2637. arXiv:1503.00724. Bibcode:2015MNRAS.449.2618W. doi:10.1093/mnras/stv384.

[Goffo2023-8] Cite error: The named reference Goffo2023 was invoked but never defined (see the help page).

Observation data Epoch J2000 Equinox J2000
Constellation	Vela
Right ascension	09^h 44^m 29.83677^s^[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 (R_v)	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
Añañuca, CD−45 5378, GJ 367, HIP 47780, TOI-731, TIC 34068865, TYC 8168-2031-1, 2MASS J09442986-4546351^[4]
Database references
SIMBAD	data

Gliese 367 information

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