Astronomy:2MASS J03552337+1133437

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Coordinates: Sky map 03h 55m 23.370s, +11° 33′ 43.71″

2MASS J03552337+1133437
Observation data
Equinox J2000.0]] (ICRS)
Constellation Taurus
Right ascension  03h 55m 23.370s[1]
Declination 11° 33′ 43.71″[1]
Evolutionary stage brown dwarf
Spectral type L5γ
Apparent magnitude (G) 19.5831
Apparent magnitude (J) 14.05
Apparent magnitude (H) 12.53
Apparent magnitude (K) 11.526
J−H colour index 1.52
J−K colour index 2.52
Radial velocity (Rv)11.92 km/s
Parallax (π)109.6451 ± 0.7368[2] mas
Distance29.7 ± 0.2 ly
(9.12 ± 0.06 pc)
Other designations
EPIC 210327027, Gaia DR2 3303349202364648320, BNA 3, WISEA J035523.53+113337.2
Database references

2MASS J03552337+1133437 (2MASS J0355+11) is a nearby brown dwarf of spectral type L5γ,[3] located in constellation Taurus at approximately 29.8 light-years from Earth.[4]


2MASS J0355+11 was discovered in 2006 by Reid et al.[5]

It is radio-quiet brown dwarf, indicating an absence of stellar flares.[6]

The interstellar comet 2I/Borisov has passed 1.4 light-years (0.44 parsecs) from 2MASS J0355+11 280 thousand years before arriving to the Solar System.[7]

See also


  1. 1.0 1.1 1.2 "2MASS J03552337+1133437 — Brown Dwarf (M<0.08solMass)". SIMBAD. Centre de Données astronomiques de Strasbourg. Retrieved 2013-09-24. 
  2. Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode2018A&A...616A...1G.  Gaia DR2 record for this source at VizieR.
  3. Cruz, Kelle L.; Kirkpatrick, J. Davy; Burgasser, Adam J. (2009). "Young L Dwarfs Identified in the Field: A Preliminary Low-Gravity, Optical Spectral Sequence from L0 to L5". The Astronomical Journal 137 (2): 3345–3357. doi:10.1088/0004-6256/137/2/3345. Bibcode2009AJ....137.3345C. 
  4. Liu, M. C.; Dupuy, T. J.; Allers, K. N. (2013). "Infrared parallaxes of young field brown dwarfs and connections to directly imaged gas-giant exoplanets". Astronomische Nachrichten 334 (1–2): 85–88. doi:10.1002/asna.201211783. Bibcode2013AN....334...85L. 
  5. Reid, I. Neill; Lewitus, E.; Allen, P. R.; Cruz, Kelle L.; Burgasser, Adam J. (2006). "A Search for Binary Systems among the Nearest L Dwarfs". The Astronomical Journal 132 (2): 891–901. doi:10.1086/505626. Bibcode2006AJ....132..891R. 
  6. On the Correlation between L Dwarf Optical and Infrared Variability and Radio Aurorae, 2020 
  7. The Dynamics of Interstellar Asteroids and Comets within the Galaxy: an Assessment of Local Candidate Source Regions for 1I/ʻOumuamua and 2I/Borisov, 2019 

Further reading