2MASS 1835+3259
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2MASS 1835+3259
Coordinates: 
18h 35m 37.902s, +32° 59′ 54.59″
| 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 | |
| Database references | |
| SIMBAD | data |
2MASS 1835+3259 (full designation is 2MASSI J1835379+325954) 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]
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 distanse of 5.67 ± 0.02 pc, or 18.48 ± 0.05 ly.[2]
External links
References
- ^ a b c d e f g h i "2MASS J18353790+3259545 -- Brown Dwarf (M<0.08solMass)". Centre de Données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-id?Ident=2MASS+J18353790%2B3259545. Retrieved 2011-10-16.
- ^ a b c d e f g h i j k l m 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.
- ^ 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.
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