2MASS 1507−1627
2MASS J15074769−1627386 (also abbreviated to 2MASS 1507−1627) is a brown dwarf in the constellation Libra, located about 23.9 light-years from Earth. It was discovered in 2000 by I. Neill Reid et al. It belongs to the spectral class L5; its surface temperature is 1300 to 2000 kelvins. As with other brown dwarfs of spectral type L, its spectrum is dominated by metal hydrides and alkali metals. Its position shifts due to its proper motion by 0.9031 arcseconds per year. It has a parallax of (136.4 ± 0.6) milliseconds of arc.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Libra |
| Right ascension | 15h 07m 47.69s |
| Declination | −16° 27′ 38.6″ |
| Characteristics | |
| Spectral type | L5 |
| Apparent magnitude (R) | ~19 |
| Apparent magnitude (J) | 12.830 ± 0.027 |
| Apparent magnitude (H) | 11.895 ± 0.024 |
| Apparent magnitude (K) | 11.312 ± 0.026 |
| Astrometry | |
| Proper motion (μ) | RA: −92 mas/yr Dec.: −875 mas/yr |
| Parallax (π) | 136.4 ± 0.6 mas |
| Distance | 23.9 ± 0.1 ly (7.33 ± 0.03 pc) |
| Details | |
| Temperature | 1300–2000 K |
| Other designations | |
2MASS 1507−1627; 2MASSW J1507476162738; 2MUCD 11296; 2MASSI J1507476−162738 | |
External links
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