UGPS J0521+3640
UGPS J0521+3640 is a nearby brown dwarf of spectral class T8.5, located in constellation Auriga. It was discovered in 2011 using United Kingdom Infrared Telescope (UKIRT), UKIRT Infrared Deep Sky Survey (UKIDSS), UGPS (UKIDSS Galactic Plane Survey) component, 6th data release.[1]
| Observation data Epoch 2007.82 Equinox J2000 | |
|---|---|
| Constellation | Auriga |
| Right ascension | 05h 21m 27.27s |
| Declination | +36° 40′ 48.6″ |
| Characteristics | |
| Spectral type | T8.5 |
| Apparent magnitude (J (UKIDSS filter system)) | 16.94 ± 0.02 |
| Apparent magnitude (H (UKIDSS filter system)) | 17.28 ± 0.04 |
| Apparent magnitude (K (UKIDSS filter system)) | 17.32 ± 0.09 |
| Astrometry | |
| Proper motion (μ) | RA: 513 mas/yr Dec.: −1507 mas/yr |
| Distance | 26.7+3.9 −3.3 ly (8.2+1.2 −1.0 pc) |
| Details | |
| Mass | 14–32 MJup |
| Radius | 0.8–1.0 RJup |
| Surface gravity (log g) | 4.5–5.0 cgs |
| Temperature | 600–650 K |
| Database references | |
| SIMBAD | data |
Its photometric distance estimate is 8.2+1.2
−1.0 pc, or 26.7+3.9
−3.3 ly.[1]
References
- Burningham, Ben; Lucas; Leggett; Smart; Baker; Pinfield; Tinney; Homeier; Allard; Zhang; Gomes; Day-Jones; Jones; Kovacs; Lodieu; Marocco; Murray; Sipocz (2011). "The discovery of the T8.5 dwarf UGPS J0521+3640". Monthly Notices of the Royal Astronomical Society: Letters. 414 (1): L90–L94. arXiv:1104.1526. Bibcode:2011MNRAS.414L..90B. doi:10.1111/j.1745-3933.2011.01062.x. S2CID 18008503.
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