WISEPA J164715.59+563208.2

From Wikipedia, the free encyclopedia
Jump to: navigation, search

Coordinates: Sky map 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]
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]
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[1]

WISEPA J164715.59+563208.2 (designation abbreviated to WISE 1647+5632, or WISE J1647+5632) is a brown dwarf of spectral class L9 pec (red),[1] located in constellation Draco at approximately 28 light-years from Earth.[1]


WISE 1647+5632 was discovered in 2011 by J. Davy Kirkpatrick et al. from data, collected by Wide-field Infrared Survey Explorer (WISE) Earth-orbiting satelliteNASA infrared-wavelength 40 cm (16 in) space telescope, which mission lasted from December 2009 to February 2011. In 2011 Kirkpatrick et al. published a paper in The Astrophysical Journal Supplement, where they presented discovery of 98 new found by WISE brown dwarf systems with components of spectral types M, L, T and Y, among which also was WISE 1647+5632.[1][note 1]


Trigonometric parallax of WISE 1506+7027, published in its discovery paper in 2011, is 0.116 ± 0.029 arcsec, corresponding to a distance 8.6+2.9
pc, or 28.1+9.4

WISE 1647+5632 distance estimates

Source Parallax, mas Distance, pc Distance, ly Ref.
Kirkpatrick et al. (2011), Table 6 ~20.2 ~65.9 [1]
Kirkpatrick et al. (2011), Table 7 116 ± 29 8.6+2.9

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

See also[edit]

The other seven L-type brown dwarfs, presented in Kirkpatrick et al. (2011):[1]

L-type brown dwarf, presented in Gizis et al. (2011):[2]

L-type brown dwarf, presented in Castro & Gizis (2012):[3]

L-type brown dwarf, presented in Gizis et al. (2012):[4]

M-type brown dwarf, presented in Kirkpatrick et al. (2011):[1]


  1. ^ This 98 brown dwarf systems are only among first, not all brown dwarf systems, discovered from data, collected by WISE: six discoveries was published earlier (however, also listed in Kirkpatrick et al. (2011)) in Mainzer et al. (2011) and Burgasser et al. (2011), and the other discoveries was published later.


  1. ^ a b c d e f g h i j k l m n o p q r s t u v Kirkpatrick, J. Davy; Cushing, Michael C.; Gelino, Christopher R.; Griffith, Roger L.; Skrutskie, Michael F.; Marsh, Kenneth A.; Wright, Edward L.; Mainzer, A.; Eisenhardt, Peter R.; McLean, Ian S.; Thompson, Maggie A.; Bauer, James M.; Benford, Dominic J.; Bridge, Carrie R.; Lake, Sean E.; Petty, Sara M.; Stanford, S. A.; Tsai, Chao-Wei; Bailey, Vanessa; Beichman, Charles A.; Bloom, Joshua S.; Bochanski, John J.; Burgasser, Adam J.; Capak, Peter L.; Cruz, Kelle L.; Hinz, Philip M.; Kartaltepe, Jeyhan S.; Knox, Russell P.; Manohar, Swarnima; Masters, Daniel; Morales-Calderon, Maria; Prato, Lisa A.; Rodigas, Timothy J.; Salvato, Mara; Schurr, Steven D.; Scoville, Nicholas Z.; Simcoe, Robert A.; Stapelfeldt, Karl R.; Stern, Daniel; Stock, Nathan D.; Vacca, William D. (2011). "The First Hundred Brown Dwarfs Discovered by the Wide-field Infrared Survey Explorer (WISE)". The Astrophysical Journal Supplement 197 (2): 19. arXiv:1108.4677v1. Bibcode:2011ApJS..197...19K. doi:10.1088/0067-0049/197/2/19.  edit
  2. ^ Gizis, John E.; Burgasser, Adam J.; Faherty, Jacqueline K.; Castro, Philip J.; Shara, Michael M. (2011). "WISEP J180026.60+013453.1: A nearby late-L Dwarf near the Galactic Plane". The Astronomical Journal 142 (5): 171. arXiv:1109.0054. Bibcode:2011AJ....142..171G. doi:10.1088/0004-6256/142/5/171.  edit
  3. ^ Castro, Philip J.; Gizis, John E. (2012). "Discovery of a Late L Dwarf: WISEP J060738.65+242953.4". The Astrophysical Journal 746 (1): 3. arXiv:1110.4351. Bibcode:2012ApJ...746....3C. doi:10.1088/0004-637X/746/1/3.  edit
  4. ^ Gizis, John E.; Faherty, Jacqueline K.; Liu, Michael C.; Castro, Philip J.; Shaw, John D.; Vrba, Frederick J.; Harris, Hugh C.; Aller, Kimberly M.; Deacon, Niall R. (2012). "Discovery of an Unusually Red L-type Brown Dwarf". The Astronomical Journal 144 (4): 94. arXiv:1207.4012. Bibcode:2012AJ....144...94G. doi:10.1088/0004-6256/144/4/94.  edit