GJ 3379

GJ 3379
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Orion
Right ascension 06h 00m 03.50386s[1]
Declination +02° 42′ 23.5968″[1]
Apparent magnitude (V) +11.307[2]
Characteristics
Spectral type M3.5Ve[3] or dM4.0[4]
B−V color index 1.667[2]
Astrometry
Radial velocity (Rv)+30.228±0.0038[5] km/s
Proper motion (μ) RA: +309.487[1] mas/yr
Dec.: −40.640[1] mas/yr
Parallax (π)192.0135 ± 0.0310 mas[6]
Distance16.986 ± 0.003 ly
(5.2080 ± 0.0008 pc)
Absolute magnitude (MV)+12.71[3]
Details[4]
Mass0.2312±0.0058 M☉
Radius0.2457±0.0078 R☉
Luminosity0.006329±0.000088 L☉
Luminosity (bolometric)0.0086[7] L☉
Surface gravity (log g)5.10±0.07 cgs
Temperature3,284±51 K
Metallicity [Fe/H]−0.12±0.16 dex
Rotation1.809 d[8]
Rotational velocity (v sin i)5.8±0.3 km/s[3] km/s
Other designations
GJ 3379, WDS J06001+0242A, G 99-49, G 106-17, LTT 17897, NLTT 15908, PLX 1383.02, TYC 134-605-1, 2MASS J06000351+0242236[9]
Database references
SIMBADdata
GJ 3379 is located in the constellation Orion
GJ 3379 is located in the constellation Orion
GJ 3379
Location of GJ 3379 in the constellation Orion

GJ 3379 (Giclas 99-49) is the nearest star in the Orion constellation, located at a distance of 17 light years from the Sun based on parallax. It is a single star[3] with an apparent visual magnitude of +11.31[2] and an absolute magnitude of +12.71,[3] therefore, the star is not visible with the naked eye. It is positioned in the upper left part of the Orion constellation, to the SSE of Betelgeuse. This star is drifting further away with a radial velocity of +30.0 kilometers per second.[5] In the past, this star had a relatively close encounter with the Solar System. Some 161,000±6,000 years ago, it achieved a minimum distance of 4.08 ± 0.20 ly (1.25 ± 0.06 pc).[10]

  1. ^ a b c d Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference Zacharias_et_al_2012 was invoked but never defined (see the help page).
  3. ^ a b c d e Cite error: The named reference Davison_et_al_2015 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Schweitzer_et_al_2019 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Soubiran_et_al_2018 was invoked but never defined (see the help page).
  6. ^ Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
  7. ^ Cite error: The named reference Khata_et_al_2020 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Newton_et_al_2016 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Bobylev2017 was invoked but never defined (see the help page).