WISE 1647+5632

Coordinates: 16h 47m 15.59s, +56° 32′ 08.44″

WISEPA J164715.59+563208.2
Observation data
Epoch MJD 55592.29[1]      Equinox J2000[1]
Constellation Draco
Right ascension 16h 47m 15.59s[1]
Declination 56° 32′ 08.44″[1]
Characteristics
Spectral type L9 pec (red)[1]
Apparent magnitude (J (2MASS filter system)) 16.590 ± 0.062[1]
Apparent magnitude (H (2MASS filter system)) 15.336 ± 0.060[1]
Apparent magnitude (KS (2MASS filter system)) 14.483 ± 0.072[1]
Astrometry
Proper motion (μ) RA: -166 ± 9[1] mas/yr
Dec.: 242 ± 8[1] mas/yr
Parallax (π) 116 ± 29[1] mas
Distance approx. 28 ly
(approx. 9 pc)
Other designations
WISEPA J164715.59+563208.2[1], WISE J1647+5632[1]

WISE 1647+5632 (full designation is WISEPA J164715.59+563208.2) is a brown dwarf of spectral class L9 pec (red)[1], located in constellation Draco. It is one of 106 brown dwarfs (counting components of two binary systems of brown dwarfs[2]), discovered in 2011 by the Wide-field Infrared Survey Explorer. Its photometric distance estimate is 20.2 pc (65.9 ly)[1], and its trigonometric parallax (0.116 ± 0.029 arcsecond) indicates distance 8.6 +2.9/ -1.7 pc (28.1 +9.4/ -5.6 ly)[1].

References

  1. ^ a b c d e f g h i j k l m n o p Kirkpatrick, J. Davy; Cushing; Gelino; Griffith; Skrutskie; Marsh; Wright; Mainzer; Eisenhardt; McLean; Thompson; Bauer; Benford; Bridge; Lake; Petty; Stanford; Tsai; Bailey; Beichman; Bochanski; Burgasser; Capak; Cruz; Hinz; Kartaltepe; Knox; Manohar; Masters; Morales-Calderуnn; Prato; Rodigas; Salvato; Schurr; Scoville; Simcoe; Stapelfeldt; Stern; Stock; Vacca (2011). "The First Hundred Brown Dwarfs Discovered by the Wide-field Infrared Survey Explorer (WISE)". arXiv:1108.4677v1 [astro-ph.SR]. 
  2. ^ Gelino; Kirkpatrick; Cushing; Eisenhardt; Griffith; Mainzer; Marsh; Skrutskie; Wright (2011). "WISE Brown Dwarf Binaries: The Discovery of a T5+T5 and a T8.5+T9 System". arXiv:1106.3142v1 [astro-ph.SR]. 
Stars of Draco
Bayer
Flamsteed
Nearby