WISE J000517.48+373720.5

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Coordinates: Sky map 00h 05m 17.48s, +37° 37′ 20.5″

WISE J000517.48+373720.5
Observation data
Epoch J2000[1]      Equinox J2000[1]
Constellation Andromeda
Right ascension 00h 05m 17.48s[1]
Declination 37° 37′ 20.5″[1]
Spectral type T9[1][2]
Distance ~ 23.2[1] ly
(~ 7.1[1] pc)
Other designations
WISE J000517.48+373720.5[1]

WISE J000517.48+373720.5 is a brown dwarf of spectral class T9,[1][2] located in constellation Andromeda at approximately 23 light-years from Earth.[1]


WISE J000517.48+373720.5 was discovered in 2012 by Mace 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. The discovery paper is not yet published.[2]


Trigonometric parallax of WISE J000517.48+373720.5 is not yet measured. Therefore, there are only distance estimates of this object, obtained by indirect — spectrofotometric — means (see table).

WISE J000517.48+373720.5 distance estimates

Source Parallax, mas Distance, pc Distance, ly Ref.
Kirkpatrick et al. (2012), Tables 4 & 8 7.1 23.2 [1]

Non-trigonometric distance estimates are marked in italic.


  1. ^ a b c d e f g h i j k Kirkpatrick, J. D.; Gelino, C. R.; Cushing, M. C.; Mace, G. N.; Griffith, R. L.; Skrutskie, M. F.; Marsh, K. A.; Wright, E. L.; Eisenhardt, P. R.; McLean, I. S.; Mainzer, A. K.; Burgasser, A. J.; Tinney, C. G.; Parker, S.; Salter, G. (2012). "Further Defining Spectral Type "Y" and Exploring the Low-mass End of the Field Brown Dwarf Mass Function". The Astrophysical Journal. 753 (2): 156. arXiv:1205.2122free to read. Bibcode:2012ApJ...753..156K. doi:10.1088/0004-637X/753/2/156. 
  2. ^ a b c Mace et al., in prep.[volume & issue needed]