GJ 3379
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Orion |
| Right ascension | 06h 00m 3.495s |
| Declination | +02° 42′ 23.67″ |
| Apparent magnitude (V) | +11.33 |
| Characteristics | |
| Spectral type | M3.5V |
| Astrometry | |
| Radial velocity (Rv) | +30.0 km/s |
| Parallax (π) | 193.60 ± 1.85[1] mas |
| Distance | 16.8 ± 0.2 ly (5.17 ± 0.05 pc) |
| Absolute magnitude (MV) | +12.68 |
| Details | |
| Mass | 0.19 M☉ |
| Other designations | |
| Database references | |
| SIMBAD | data |
GJ 3379 (Giclas 99-49) is the nearest star in the Orion constellation, being around 17.5 lightyears away from the Sun. The main sequence star is a red dwarf with the spectral class M3.5V. It has an apparent magnitude of 11.33 and an absolute magnitude of 12.68, therefore, the star is not visible with the naked eye. It is located in the left upper part of the Orion constellation, below Betelgeuse. It's radial velocity is +30.0 kilometers per second. According to the SIMBAD database, the star is classified as a flare star.
In the past, this star may have had a close encounter with the Solar System. Some 163,000 ± 3,000 years ago, it achieved a minimum distance of 4.30 ± 0.10 ly (1.32 ± 0.03 pc).[6]
References
- ↑ Davison, Cassy L.; White, Russel J.; Henry, Todd J.; Riedel, Adric R.; Jao, Wei-Chun; Bailey III, John I.; Quinn, Samuel N.; Justin R., Cantrell; John P., Subasavage; Jen G., Winters (2015). "A 3D Search for Companions to 12 Nearby M-Dwarfs". arXiv:1501.05012
[astro-ph.SR]. - ↑ Gliese, W.; Jahreiß, H. (1991). "NN 3379". Preliminary Version of the Third Catalogue of Nearby Stars. Retrieved 2014-11-23.
- ↑ Luyten, Willem Jacob (1979). "NLTT 15908". NLTT Catalogue.
- ↑ Van Altena W. F.; Lee J. T.; Hoffleit E. D. (1995). "GCTP 1383.02". The General Catalogue of Trigonometric Stellar Parallaxes (Fourth ed.). Retrieved 2014-11-23.
- ↑ Hog; et al. (2000). "TYC 134-605-1". The Tycho-2 Catalogue.
- ↑ Bobylev, V. V. (November 2010). "Stars outside the Hipparcos list closely encountering the Solar system". Astronomy Letters. 36 (11): 816–822. arXiv:1009.4856. Bibcode:2010AstL...36..816B. doi:10.1134/S1063773710110071.
- Henry, T. J.; Jao, Wei-Chun; Subasavage, John P.; Beaulieu, Thomas D.; Ianna, Philip A.; Costa, Edgardo; Méndez, René A. (2006). "The Solar Neighborhood. XVII. Parallax Results from the CTIOPI 0.9 m Program: 20 New Members of the RECONS 10 Parsec Sample". The Astronomical Journal. 132 (6): 2360–2371. arXiv:astro-ph/0608230. Bibcode:2006AJ....132.2360H. doi:10.1086/508233.
- Dittmann, Jason A.; Irwin, Jonathan M.; Charbonneau, David; Berta-Thompson, Zachory K. (2014). "Trigonometric Parallaxes for 1507 Nearby Mid-to-late M Dwarfs". The Astrophysical Journal. 784 (2): 156. arXiv:1312.3241. Bibcode:2014ApJ...784..156D. doi:10.1088/0004-637X/784/2/156. Table with parallaxes.
External links
Coordinates: 
06h 00m 3.495s, +02° 42′ 23.67″