2MASS J15472723 + 0336361
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Brown dwarf 2MASS J15472723 + 0336361 |
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| Observation dates equinox : J2000.0 , epoch : J2000.0 |
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| Constellation | Snake | ||
| Right ascension | 15 h 47 m 27.23 s | ||
| declination | + 03 ° 36 ′ 36.1 ″ | ||
| Apparent brightness | ~ 23 (r) likes | ||
| distance | ~ 300 ly (~ 100 pc ) |
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| Proper movement | |||
| Rec. Share: | 0.08157 mas / a | ||
| Typing | |||
| Spectral class | L2 | ||
| Physical Properties | |||
| Effective temperature | 1300-2000 K | ||
| Other names and catalog entries |
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2MASS J15472723 + 0336361 is a brown dwarf in the constellation Snake, about 300 light-years from Earth . It was founded in 2002 by Suzanne L. Hawley et al. discovered.
It belongs to the spectral class L2; 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 0.08157 arc seconds annually due to its own motion .
Web links
- Entry at DwarfArchives.org (English)
- Suzanne L. Hawley et al .: Characterization of M, L, and T Dwarfs in the Sloan Digital Sky Survey . In: The Astronomical Journal, 123, 2002, pp. 3409-3427. bibcode : 2002AJ .... 123.3409H (English)