2MASS J13243559 + 6358284
Brown dwarf 2MASS J13243559 + 6358284 |
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Observation dates equinox : J2000.0 , epoch : J2000.0 |
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Constellation | Dragon | ||
Right ascension | 13 h 24 m 35.59 s | ||
declination | + 63 ° 58 ′ 28.4 ″ | ||
Apparent brightness | (15.60 ± 0.07) mag | ||
Radial velocity | -23.7 +0.4−0.2 km / s | ||
parallax | (78.7 ± 9.0) mas | ||
distance | (12.7 ± 1.5) pc | ||
Proper movement | |||
Rec. Share: | (-379.7 ± 7.7) · 10 3 mas / a | ||
Dec. portion: | (-66.2 ± 7.0) · 10 3 mas / a | ||
Typing | |||
Spectral class | T2 | ||
Physical Properties | |||
Dimensions | 11 to 12 M ♃ | ||
radius | (1.23 ± 0.02) km | ||
Rotation time | (13 ± 1) h | ||
Age | 149 +51−19Million a | ||
Other names and catalog entries |
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2MASS J13243559 + 6358284 is a brown dwarf of the spectral class T2 in the constellation Draco . Its position shifts by 0.43 arc seconds annually due to its own motion . He was identified as a T dwarf in 2007 by Adam J. Burgasser, J. Davy Kirkpatrick, and Dagny L. Looper. In 2018 he was identified as a PMO .
Web links
- Entry at DwarfArchives.org (English)
- Discovery paper: bibcode : 2007AJ .... 134.1162L (English)