2MASS J17073334 + 4301304
Brown dwarf 2MASS J17073334 + 4301304 |
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Observation dates equinox : J2000.0 , epoch : J2000.0 |
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Constellation | Hercules | ||
Right ascension | 17 h 07 m 33.34 s | ||
declination | + 43 ° 01 ′ 30.4 ″ | ||
Apparent brightness | J-band: approx. 14 mag | ||
distance | ~ 70 ly (~ 20 pc ) |
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Typing | |||
Spectral class | L0.5 | ||
Physical Properties | |||
Other names and catalog entries |
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2MASS J17073334 + 4301304 is an L-dwarf (approx. L0.5) in the constellation Hercules, about 70 light-years away from Earth . It was published in 2003 by Kelle L. Cruz et al. discovered. Its position shifts every year by 0.201 arc seconds due to its own motion .
Web links
- Entry at DwarfArchives.org (English)
- Cruz, Kelle L .; et al .: Meeting the Cool Neighbors. V. A 2MASS-Selected Sample of Ultracool Dwarfs . In: The Astronomical Journal, 2003, Volume 126, Number 5, pp. 2421-2448. bibcode : 2003AJ .... 126.2421C (English)