WISEPC J033349.34-585618.7

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Coordinates: Sky map 03h 33m 49.33s, −58° 56′ 18.6″

WISEPC J033349.34-585618.7
Observation data
Epoch MJD 55554.87[1]      Equinox J2000[1]
Constellation Reticulum
Right ascension 03h 33m 49.33s[1]
Declination −58° 56′ 18.6″[1]
Spectral type T3[1]
Apparent magnitude (J (2MASS filter system)) 15.997 ± 0.083[1]
Apparent magnitude (H (2MASS filter system)) 15.418 ± 0.120[1]
Apparent magnitude (KS (2MASS filter system)) 14.639 ± 0.097[1]
Proper motion (μ) RA: -126 ± 8[1] mas/yr
Dec.: -607 ± 7[1] mas/yr
Distance ~ 54.8[1] ly
(~ 16.8[1] pc)
Other designations
WISEPC J033349.34-585618.7[1]
WISE J0333-5856[1]
WISE 0333-5856[1]

WISEPC J033349.34-585618.7 (designation abbreviated to WISE 0333-5856, or WISE J0333-5856) is a brown dwarf of spectral class T3,[1] located in constellation Reticulum at approximately 55 light-years from Earth.[1]


WISE 0333-5856 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 0333-5856.[1][note 1]


Trigonometric parallax of WISE 0333-5856 is not yet measured. Therefore, there are only distance estimates of this object, obtained by indirect — spectrofotometric — means (see table).

WISE 0333-5856 distance estimates

Source Parallax, mas Distance, pc Distance, ly Ref.
Kirkpatrick et al. (2011) ~16.8 ~54.8 [1]

Non-trigonometric distance estimates are marked in italic.


  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 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