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UGPS J0521+3640

Coordinates: Sky map 05h 21m 27.27s, +36° 40′ 48.6″
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UGPS J0521+3640

UGPS J0521+3640
Credit: UKIDSS
Observation data
Epoch 2007.82      Equinox J2000
Constellation Auriga
Right ascension 05h 21m 27.27s[1]
Declination +36° 40′ 48.6″[1]
Characteristics
Spectral type T8.5[1]
Apparent magnitude (J (UKIDSS filter system)) 16.94 ± 0.02[1]
Apparent magnitude (H (UKIDSS filter system)) 17.28 ± 0.04[1]
Apparent magnitude (K (UKIDSS filter system)) 17.32 ± 0.09[1]
Astrometry
Proper motion (μ) RA: 569.0±0.9 mas/yr[2]
Dec.: −1511.0±1.0 mas/yr[2]
Parallax (π)122.2 ± 1.6 mas[2]
Distance26.7 ± 0.3 ly
(8.2 ± 0.1 pc)
Details[1]
Mass14–32 MJup
Radius0.8–1.0 RJup
Surface gravity (log g)4.5–5.0 cgs
Temperature600–650 K
Database references
SIMBADdata

UGPS J0521+3640 is a nearby brown dwarf of spectral class T8.5, located in the 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]

Its photometric distance estimate is 8.2+1.2
−1.0
pc, or 26.7+3.9
−3.3
ly.[1] Based on its parallax measured in 2019, its distance is 26.7 ± 0.3 light-years (8.186 ± 0.092 parsecs).[2]

See also

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References

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  1. ^ a b c d e f g h i 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.
  2. ^ a b c Kirkpatrick, J. Davy; Martin, Emily C.; Smart, Richard L.; Cayago, Alfred J.; Beichman, Charles A.; Marocco, Federico; et al. (February 2019). "Preliminary Trigonometric Parallaxes of 184 Late-T and Y Dwarfs and an Analysis of the Field Substellar Mass Function into the "Planetary" Mass Regime". The Astrophysical Journal Supplement Series. 240 (2): 69. arXiv:1812.01208. Bibcode:2019ApJS..240...19K. doi:10.3847/1538-4365/aaf6af. 19.