2MASS J21392676+0220226

2MASS J21392676+0220226 is a brown dwarf 47 light years from earth.[4] Its surface is thought to be host to a massive storm.[5] It was discovered in the Two Micron All-Sky Survey (2MASS).

2MASS J21392676+0220226

Observation data Epoch J2000      Equinox J2000
Constellation	Aquarius
Right ascension	21^h 39^m 26.769^s[1]
Declination	+02° 20′ 22.70″[1]
Characteristics
Spectral type	T1.5[2]
Apparent magnitude (J)	14.710[2]
Apparent magnitude (H)	14.16[1]
Apparent magnitude (K)	13.58[1]
Astrometry
Parallax (π)	101.5 ± 2.0[3] mas
Distance	32.1 ± 0.6 ly (9.9 ± 0.2 pc)
Other designations
CFBDS J213926+022023, 2MUCD 20912, WISEP J213927.09+022023.7
Database references
SIMBAD	data

External links

• Burgasser, Adam J.; Cruz, Kelle L.; Cushing, Michael; Gelino, Christopher R.; Looper, Dagny L.; Faherty, Jacqueline K.; Kirkpatrick, J. Davy; Reid, I. Neill (2010). "SpeX Spectroscopy of Unresolved Very Low-Mass Binaries. I. Identification of Seventeen Candidate Binaries Straddling the L Dwarf/T Dwarf Transition". The Astrophysical Journal. 710 (2): 1142–1169. arXiv:0912.3808. Bibcode:2010ApJ...710.1142B. doi:10.1088/0004-637X/710/2/1142. S2CID 30729652.

References

1. Cutri, R. M. (2003). "2MASS All-Sky Catalog of Point Sources". VizieR On-line Data Catalog. Bibcode:2003yCat.2246....0C.
2. "2MASS J21392676+0220226". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 19 December 2016.
3. Smart, R. L. (2013). "NPARSEC: NTT Parallaxes of Southern Extremely Cool objects. Goals, targets, procedures and first results". Monthly Notices of the Royal Astronomical Society. 433 (3): 2054–2063. arXiv:1306.4527. Bibcode:2013MNRAS.433.2054S. doi:10.1093/mnras/stt876. S2CID 1376087.
4. Andrew Fazekas. "Colossal Storm May Rage on Jupiter-like 'Failed Star'".
5. Dean Praetorius. "Brown Dwarf May Be Host To Massive, Violent Mega Storm". The Huffington Post, 9/13/2011.