2MASS 0532+8246
Coordinates: 05h 32m 53.46s, +82° 46′ 46.5″
Observation data Epoch J2000[1] Equinox J2000[1] | |
---|---|
Constellation | Camelopardalis |
Right ascension | 05h 32m 53.46s[1] |
Declination | +82° 46′ 46.5″[1] |
Characteristics | |
Spectral type | sdL7[1] |
Astrometry | |
Parallax (π) | 37.50 ± 1.70[2] mas |
Distance | 87 ± 4 ly (27 ± 1 pc) |
Details | |
Mass | 0.077 – 0.085 M☉ |
Metallicity | 0.1 – 0.01 |
Age | 10–15 Gyr |
Other designations | |
Database references | |
SIMBAD | data |
2MASS 0532+8246 (full designation 2MASS J05325346+8246465) is possibly the first halo brown dwarf and the first substellar subdwarf.
- Mass: 0.077 – 0.085 MSun
- Age: 10–15 Ga
- Metallicity Z: 0.1 – 0.01 ZSun
References
- The First Substellar Subdwarf? Discovery of a Metal-Poor L Dwarf with Halo Kinematics, Adam J. Burgasser, et al. 2003
- 1 2 3 4 5 6 "2MASS J05325346+8246465 -- Brown Dwarf (M<0.08solMass)". SIMBAD. Centre de Données astronomiques de Strasbourg. Retrieved 2012-11-23.
- ↑ Faherty, Jacqueline K.; Burgasser, Adam J.; Walter, Frederick M.; Van der Bliek, Nicole; Shara, Michael M.; Cruz, Kelle L.; West, Andrew A.; Vrba, Frederick J.; Anglada-Escud, Guillem (2012). "The Brown Dwarf Kinematics Project (BDKP). III. Parallaxes for 70 Ultracool Dwarfs". The Astrophysical Journal. 752 (1): 56. arXiv:1203.5543. Bibcode:2012ApJ...752...56F. doi:10.1088/0004-637X/752/1/56.
External links
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