LSR J1835+3259

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Coordinates: Sky map 18h 35m 37.902s, +32° 59′ 54.59″

LSR J1835+3259
Observation data
Epoch J2000[1]      Equinox J2000[1]
Constellation Lyra
Right ascension 18h 35m 37.902s[1]
Declination +32° 59′ 54.59″[1]
Characteristics
Spectral type M8.5[2]
Apparent magnitude (V (USNO filter system)) 18.27 ± 0.03[2]
Apparent magnitude (I (USNO filter system)) 13.46 ± 0.02[2]
Apparent magnitude (z (USNO filter system)) 12.63 ± 0.02[2]
Apparent magnitude (J (2MASS filter system)) 10.27 ± 0.03[2]
Apparent magnitude (H (2MASS filter system)) 9.58 ± 0.05[2]
Apparent magnitude (Ks (2MASS filter system)) 9.15 ± 0.04[2]
Astrometry
Radial velocity (Rv) -10 ± 40[3] km/s
Parallax (π) 176.5 ± 0.5[2] mas
Distance 18.48 ± 0.05 ly
(5.67 ± 0.02 pc)
Other designations
2MASSI J1835379+325954,[2] 2MASS 1835+32,[2] 2MASS J18353790+3259545,[1] LSR 1835+3259,[3] 2MUCD 11792,[1] [B2006] J183537.9+325955,[1] LSPM J1835+3259,[1] USNO-B1.0 1229-00376318[1]
Database references
SIMBAD data

LSR J1835+3259 is a nearby brown dwarf star of spectral class M8.5,[2] located in constellation Lyra, the discovery of which was published in 2003,[2][3] and it is the 3rd nearest M-type brown dwarf after DEN 1048-3956 and LP 944-020.[3]

Distance[edit]

Trigonometric parallax of this object, measured in 2001–2002 with the USNO 61 inch (1.5 m) reflector under US Naval Observatory (USNO) parallax program, is 0.765 ± 0.0005 arcsec, corresponding to a distance of 5.67 ± 0.02 pc, or 18.48 ± 0.05 ly.[2]

LSR J1835+3259 distance estimates

Source Parallax, mas Distance, pc Distance, ly Distance, Pm Ref.
Reid et al. (2003) 176.5±0.5 5.666±0.016 18.48±0.05 174.8±0.5 [2]
RECONS TOP100 (2012) 176.50±0.50[nb 1] 5.666±0.016 18.48±0.05 174.8±0.5 [4]
Dittmann et al. (2014) 186.00±3.40 5.38±0.1 17.54+0.33
−0.31
165.9+3.1
−3
[5]

Non-trigonometric distance estimates are marked in italic. The most precise estimate is marked in bold.

References[edit]

  1. ^ a b c d e f g h i "2MASS J18353790+3259545 -- Brown Dwarf (M<0.08solMass)". Centre de Données astronomiques de Strasbourg. Retrieved 2011-10-16. 
  2. ^ a b c d e f g h i j k l m n Reid, I. Neill; Cruz; Laurie; Liebert; Dahn; Harris; Guetter; Stone; Canzian; Luginbuhl; Levine; Monet; Monet (2003). "MEETING THE COOL NEIGHBORS. IV. 2MASS 1835+32, A NEWLY DISCOVERED M8.5 DWARF WITHIN 6 PARSECS OF THE SUN". The Astronomical Journal 125: 354–358. Bibcode:2003AJ....125..354R. doi:10.1086/344946. 
  3. ^ a b c d Lepine, Sebastien; Rich; Shara (2003). "Spectroscopy of New High Proper Motion Stars in the Northern Sky. I. New Nearby Stars, New High-Velocity Stars, and an Enhanced Classification Scheme for M Dwarfs". The Astronomical Journal 125: 1598–1622. arXiv:astro-ph/0209284. Bibcode:2003AJ....125.1598L. doi:10.1086/345972. 
  4. ^ "RECONS TOP100". THE ONE HUNDRED NEAREST STAR SYSTEMS brought to you by RECONS (Research Consortium On Nearby Stars). 2012. 
  5. ^ Dittmann, Jason A.; Irwin, Jonathan M.; Charbonneau, David; Berta-Thompson, Zachory K. (2014). "Trigonometric Parallaxes for 1507 Nearby Mid-to-late M Dwarfs". The Astrophysical Journal 784 (2): 156. arXiv:1312.3241. Bibcode:2014ApJ...784..156D. doi:10.1088/0004-637X/784/2/156.  Table with parallaxes. edit

Notes[edit]

  1. ^ Parallax from Reid et al. (2003).

External links[edit]