LHS 292
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 |
| 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 |
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. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Constellation record for this object at VizieR.
- ^ a b c d e 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.
- ^ a b "The One Hundred Nearest Star Systems". Research Consortium On Nearby Stars. Georgia State University. 2007-09-17. Retrieved 2007-11-06.
- ^ a b "LHS 292". SIMBAD Astronomical Database. Retrieved 2012-06-12.
- ^ a b c 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.
- ^ a b c 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.
- ^ 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.
External links