GJ 3379

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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
GJ 3379[2], G 99-49, G 106-17, LTT 17897, NLTT 15908[3], PLX 1383.02[4], TYC 134-605-1[5], 2MASS J06000351+0242236
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. Its 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[edit]

  1. ^ 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:1501.05012Freely accessible [astro-ph.SR]. 
  2. ^ Gliese, W.; Jahreiß, H. (1991). "NN 3379". Preliminary Version of the Third Catalogue of Nearby Stars. Retrieved 2014-11-23. 
  3. ^ Luyten, Willem Jacob (1979). "NLTT 15908". NLTT Catalogue. 
  4. ^ 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. 
  5. ^ Hog; et al. (2000). "TYC 134-605-1". The Tycho-2 Catalogue. 
  6. ^ Bobylev, V. V. (November 2010). "Stars outside the Hipparcos list closely encountering the Solar system". Astronomy Letters. 36 (11): 816–822. arXiv:1009.4856Freely accessible. Bibcode:2010AstL...36..816B. doi:10.1134/S1063773710110071. 

External links[edit]

Coordinates: Sky map 06h 00m 3.495s, +02° 42′ 23.67″