Observation data Epoch J2000 Equinox J2000 |
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Constellation | Sextans |
Right ascension | 10h 48m 12.6s[1] |
Declination | −11° 20′ 14″[1] |
Apparent magnitude (V) | 15.73[1] |
Characteristics | |
Spectral type | M6.5 V |
Apparent magnitude (J) | 8.9[2] |
B−V color index | 2.10 |
Variable type | Flare star |
Astrometry | |
Parallax (π) | 220.30 ± 3.60[1] mas |
Distance | 14.8 ± 0.2 ly (4.54 ± 0.07 pc) |
Absolute magnitude (MV) | 17.45[1] |
Details | |
Mass | 0.08[1] M☉ |
Radius | 0.11? R☉ |
Luminosity | 0.00069[3] L☉ |
Temperature | 2650-2900[3] K |
Other designations | |
LP 731-58, GJ 3622, GCTP 2516.02
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Database references | |
SIMBAD | data |
LHS 292 is a red dwarf 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 relatively close to the Sun at a distance of about 14.8 light years. 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.[4]
Distance
Source | Parallax, mas | Distance, pc | Distance, ly | Distance, Pm | Ref. |
---|---|---|---|---|---|
Gliese & Jahreiß (1991) | 221.0±3.6 | 4.52±0.07 | 14.76±0.24 | 139.6+2.3 −2.2 |
[5] |
van Altena et al. (1995) | 220.3±3.6 | 4.54+0.08 −0.07 |
14.81+0.25 −0.24 |
140.1±2.3 | [6] |
RECONS TOP100 (2012) | 220.30±3.60[note 1] | 4.54+0.08 −0.07 |
14.81+0.25 −0.24 |
140.1±2.3 | [7] |
Non-trigonometric distance estimates are marked in italic. The most precise estimate is marked in bold.
See also
References
- ^ a b c d e f Research Consortium On Nearby Stars, GSU (2007-09-17). "The One Hundred Nearest Star Systems". RECONS. Retrieved 2007-11-06. External link in
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(help) - ^ "LHS 292". SIMBAD Astronomical Database. Retrieved 2012-06-12.
- ^ a b Golimowski; et al. (2004). "L' and M' Photometry of Ultracool Dwarfs". The Astrophysical Journal 127 (6): 3516–3536. arXiv:astro-ph/0402475. Bibcode:2004AJ....127.3516G. doi:10.1086/420709.
- ^ Reiners, A.; Basri, G. (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.
- ^ Gliese, W. and Jahreiß, H. (1991). "NN 3622". Preliminary Version of the Third Catalogue of Nearby Stars. Retrieved 2014-10-22.
- ^ Van Altena W. F., Lee J. T., Hoffleit E. D. (1995). "GCTP 2516.02". The General Catalogue of Trigonometric Stellar Parallaxes (Fourth ed.). Retrieved 2014-10-22.
- ^ "RECONS TOP100". THE ONE HUNDRED NEAREST STAR SYSTEMS brought to you by RECONS (Research Consortium On Nearby Stars). 2012. Retrieved 2014-10-22.
Notes
- ^ Parallax from van Altena et al. (1995).
External links
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