2MASS J13120707 + 3937445
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Brown dwarf 2MASS J13120707 + 3937445 |
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| Observation dates equinox : J2000.0 , epoch : J2000.0 |
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| Constellation | Hunting dogs | ||
| Right ascension | 13 h 12 m 7.07 s | ||
| declination | + 39 ° 37 ′ 44.5 ″ | ||
| Apparent brightness | 14,165 mag | ||
| distance | ~ 68.24 ly (~ 20 pc ) |
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| Proper movement | |||
| Rec. Share: | 0.0975 mas / a | ||
| Typing | |||
| Spectral class | L0 | ||
| Physical Properties | |||
| Effective temperature | 1300-2000 K | ||
| Other names and catalog entries |
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2MASS J13120707 + 3937445 is a brown dwarf in the constellation Hounds, about 68.24 light years from Earth . It was published in 2007 by Kelle L. Cruz et al. discovered.
It belongs to the spectral class L0; its surface temperature is 1300 to 2000 Kelvin . As with other brown dwarfs of the spectral class L, metal hydrides and alkali metals also dominate in its spectrum . Its position shifts by 0.0975 arc seconds annually due to its own motion .
Web links
- Entry at DwarfArchives.org (English)
- Cruz, Kelle L .; et al .: Meeting the Cool Neighbors. IX. The Luminosity Function of M7-L8 Ultracool Dwarfs in the Field. In: The Astronomical Journal, 2007, Volume 133, Number 2, pp. 439-467. bibcode : 2007AJ .... 133..439C (English)