Astronomy:LHS 292
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Short description: Red dwarf star in the constellation Sextans
Coordinates: 
10h 48m 12.6s, −11° 20′ 14″
300px Generic rendering of LHS 292 flare star | |
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| 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)[2] mas/yr Dec.: −1530.076(58)[2] mas/yr |
| Parallax (π) | 219.3302 ± 0.0602[2] mas |
| 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 |
  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
- ↑ Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific 99 (617): 695. doi:10.1086/132034. Bibcode: 1987PASP...99..695R Constellation record for this object at VizieR.
- ↑ 2.0 2.1 2.2 2.3 2.4 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940 Gaia DR3 record for this source at VizieR.
- ↑ 3.0 3.1 "The One Hundred Nearest Star Systems". Georgia State University. 2007-09-17. http://www.astro.gsu.edu/RECONS/TOP100.posted.htm.
- ↑ 4.0 4.1 "LHS 292". SIMBAD Astronomical Database. http://simbad.u-strasbg.fr/simbad/sim-id?Ident=LHS+292.
- ↑ 5.0 5.1 5.2 Cifuentes, C.; Caballero, J. A.; Cortés-Contreras, M.; Montes, D.; Abellán, F. J.; Dorda, R.; Holgado, G.; Zapatero Osorio, M. R. et al. (2020-10-01). "CARMENES input catalogue of M dwarfs. V. Luminosities, colours, and spectral energy distributions". Astronomy and Astrophysics 642: A115. doi:10.1051/0004-6361/202038295. ISSN 0004-6361. Bibcode: 2020A&A...642A.115C.
- ↑ 6.0 6.1 6.2 Marfil, E.; Tabernero, H. M.; Montes, D.; Caballero, J. A.; Lázaro, F. J.; González Hernández, J. I.; Nagel, E.; Passegger, V. M. et al. (December 2021). "The CARMENES search for exoplanets around M dwarfs. Stellar atmospheric parameters of target stars with SteParSyn" (in en). Astronomy and Astrophysics 656: A162. doi:10.1051/0004-6361/202141980. ISSN 0004-6361. Bibcode: 2021A&A...656A.162M.
- ↑ 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. doi:10.1088/0004-637X/705/2/1416. Bibcode: 2009ApJ...705.1416R.
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