Gliese 299

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Gliese 299
Observation data
Epoch J2000      Equinox J2000
Constellation Cancer
Right ascension  08h 11m 57.575s[1]
Declination +08° 46′ 22.05″[1]
Apparent magnitude (V) 13.24[2]
Spectral type M4.5 Ve[2]
Radial velocity (Rv)−35 ± 5[3] km/s
Proper motion (μ) RA: 1099.0[4] mas/yr
Dec.: −5123.0[4] mas/yr
Parallax (π)148 ± 2.6[5] mas
Distance22.0 ± 0.4 ly
(6.8 ± 0.1 pc)
Mass0.155 ± 0.025[5] M
Radius0.179 ± 0.009[6] R
Surface gravity (log g)5.0[2] cgs
Temperature3050[2] K
Rotational velocity (v sin i)3.0[5] km/s
Other designations
G 52-2, G 50-22, LHS 35, LTT 12146, Ross 619
Database references

Gliese 299 is a red dwarf star in the constellation Cancer. It is located 22 light-years (6.8 parsecs) from the Earth, based on parallax.[5] It is 15.5% as massive as the Sun,[5] 17.9% as wide,[6] and has a surface temperature of about 3,050 K.[2]


  1. ^ a b Cutri, R. M.; et al. (2003). "2MASS All-Sky Catalog of Point Sources". VizieR On-line Data Catalog. Bibcode:2003yCat.2246....0C.
  2. ^ a b c d e Lépine, Sébastien (2013). "A Spectroscopic Catalog of the Brightest (J < 9) M Dwarfs in the Northern Sky". The Astronomical Journal. 145 (4). arXiv:1206.5991. Bibcode:2013AJ....145..102L. doi:10.1088/0004-6256/145/4/102.
  3. ^ Wilson, Ralph Elmer (1953). "General catalogue of stellar radial velocities". Bibcode:1953GCRV..C......0W. Cite journal requires |journal= (help)
  4. ^ a b Zacharias, N. (2012). "The fourth US Naval Observatory CCD Astrograph Catalog (UCAC4)". VizieR On-line Data Catalog. Bibcode:2012yCat.1322....0Z.
  5. ^ a b c d e Jenkins, J. S.; Ramsey, L. W.; Jones, H. R. A.; Pavlenko, Y.; Gallardo, J.; Barnes, J. R.; Pinfield, D. J. (2009). "Rotational Velocities for M Dwarfs". The Astrophysical Journal. 704 (2): 975–988. arXiv:0908.4092. Bibcode:2009ApJ...704..975J. doi:10.1088/0004-637X/704/2/975.
  6. ^ a b 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.