LHS 292

Last updated
LHS 292
LHS 292 rendering.png
Generic rendering of LHS 292 flare star
Observation data
Epoch J2000       Equinox J2000
Constellation Sextans [1]
Right ascension 10h 48m 12.61425s [2]
Declination −11° 20′ 09.6107″ [2]
Apparent magnitude  (V)15.73 [3]
Characteristics
Spectral type M6.5 V [4]
Apparent magnitude  (J)8.9 [4]
B−V color index 2.10[ citation needed ]
Variable type Flare star
Astrometry
Radial velocity (Rv)1.47±0.67 [2] km/s
Proper motion (μ)RA: 579.019(66) mas/yr [2]
Dec.: −1530.076(58) mas/yr [2]
Parallax (π)219.3302±0.0602  mas [2]
Distance 14.871 ± 0.004  ly
(4.559 ± 0.001  pc)
Absolute magnitude  (MV)17.45 [3]
Details
Mass 0.099±0.009 [5]   M☉
Radius 0.1164±0.0044 [5]   R☉
Luminosity (6.49±0.09)×10−4 [5]   L☉
Surface gravity (log g)5.33±0.16 [6]   cgs
Temperature 3,029±25 [6]   K
Metallicity [Fe/H]−0.12±0.16 [6]   dex
Other designations
LP 731-58, GJ 3622, GCTP 2516.02
Database references
SIMBAD data
Sextans constellation map.svg
Red pog.png
LHS 292
Location of LHS 292 in the constellation Sextans

LHS 292 is a red dwarf star in the constellation Sextans. It is far too faint to be seen with the unaided eye and requires a large amateur telescope to be seen visually. It lies at a distance of 14.871 light-years, making it one of the nearest stars. It is a flare star, which means it can suddenly increase in brightness for short periods of time.

It has the space velocity components [U, V, W] = [28, −16, −14] km/s. [7]

References

  1. ↑ Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific . 99 (617): 695. Bibcode:1987PASP...99..695R. doi: 10.1086/132034 . Constellation record for this object at VizieR.
  2. 1 2 3 4 5 6 Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv: 2208.00211 . Bibcode:2023A&A...674A...1G. doi: 10.1051/0004-6361/202243940 . S2CID   244398875. Gaia DR3 record for this source at VizieR.
  3. 1 2 "The One Hundred Nearest Star Systems". Research Consortium On Nearby Stars . Georgia State University. 2007-09-17. Retrieved 2007-11-06.
  4. 1 2 "LHS 292". SIMBAD Astronomical Database. Retrieved 2012-06-12.
  5. 1 2 3 Cifuentes, C.; Caballero, J. A.; Cortés-Contreras, M.; Montes, D.; Abellán, F. J.; Dorda, R.; Holgado, G.; Zapatero Osorio, M. R.; Morales, J. C.; Amado, P. J.; Passegger, V. M.; Quirrenbach, A.; Reiners, A.; Ribas, I.; Sanz-Forcada, J. (2020-10-01). "CARMENES input catalogue of M dwarfs. V. Luminosities, colours, and spectral energy distributions". Astronomy and Astrophysics. 642: A115. arXiv: 2007.15077 . Bibcode:2020A&A...642A.115C. doi:10.1051/0004-6361/202038295. ISSN   0004-6361.
  6. 1 2 3 Marfil, E.; Tabernero, H. M.; Montes, D.; Caballero, J. A.; Lázaro, F. J.; González Hernández, J. I.; Nagel, E.; Passegger, V. M.; Schweitzer, A.; Ribas, I.; Reiners, A.; Quirrenbach, A.; Amado, P. J.; Cifuentes, C.; Cortés-Contreras, M. (December 2021). "The CARMENES search for exoplanets around M dwarfs. Stellar atmospheric parameters of target stars with SteParSyn". Astronomy and Astrophysics. 656: A162. Bibcode:2021A&A...656A.162M. doi:10.1051/0004-6361/202141980. ISSN   0004-6361.
  7. ↑ Reiners, Ansgar; Basri, Gibor (November 2009). "A Volume-Limited Sample of 63 M7-M9.5 Dwarfs. I. Space Motion, Kinematic Age, and Lithium". The Astrophysical Journal. 705 (2): 1416–1424. arXiv: 0909.4647 . Bibcode:2009ApJ...705.1416R. doi:10.1088/0004-637X/705/2/1416. S2CID   15893765.


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