ULAS J003402.77-005206.7
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Brown dwarf ULAS J003402.77−005206.7 |
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| Observation dates equinox : J2000.0 , epoch : J2000.0 |
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| Constellation | whale | ||
| Right ascension | 00 h 34 m 2.77 s | ||
| declination | -00 ° 52 ′ 6.7 ″ | ||
| Apparent brightness | J-band: (18.15 ± 0.03) mag | ||
| distance | approx. 46 to 72 ly (approx. 14 to 22 pc ) |
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| Typing | |||
| Spectral class | T8.5 | ||
| Physical Properties | |||
| Effective temperature | approx. 600 K | ||
| Other names and catalog entries |
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ULAS J003402.77−005206.7 is a brown dwarf of the spectral class T8.5 in the constellation Whale . Its effective temperature is estimated to be around 600 Kelvin and its distance to around 14 to 22 parsecs . The discovery of the object was made in 2007 by Warren et al. published. It is one of the coolest known brown dwarfs (as of the end of 2009).
swell
- Warren et al .: A very cool brown dwarf in UKIDSS DR1 ; in: Monthly Notices of the Royal Astronomical Society, Vol. 381, No. 4, pp. 1400ff. (2007), bibcode : 2007MNRAS.381.1400W
- Leggett et al .: The Physical Properties of Four ~ 600 KT Dwarfs ; in: The Astrophysical Journal, Vol. 695, Issue 2, pp. 1517ff. (2009), bibcode : 2009ApJ ... 695.1517L