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).
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquarius |
| Right ascension | 21h 39m 26.769s[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 (2009). "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. arXiv:0912.3808. Bibcode:2010ApJ...710.1142B. doi:10.1088/0004-637X/710/2/1142.
References
- Cutri, R. M. (2003). "2MASS All-Sky Catalog of Point Sources". VizieR On-line Data Catalog. Bibcode:2003yCat.2246....0C.
- "2MASS J21392676+0220226". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 19 December 2016.
- 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.
- Andrew Fazekas. "Colossal Storm May Rage on Jupiter-like 'Failed Star'".
- Dean Praetorius. "Brown Dwarf May Be Host To Massive, Violent Mega Storm". The Huffington Post, 9/13/2011.
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