WISE 0350−5658

Coordinates: 03h 50m 00.32s, −56° 58′ 30.2″

WISE J035000.32−565830.2
Observation data
Epoch J2000[1]      Equinox J2000[1]
Constellation Reticulum
Right ascension 03h 50m 00.32s[1]
Declination −56° 58′ 30.2″[1]
Characteristics
Spectral type Y1[1]
Apparent magnitude (J (MKO-NIR filter system)) >22.8[1]
Apparent magnitude (H (MKO-NIR filter system)) >21.5[1]
Astrometry
Proper motion (μ) RA: −125±97[2] mas/yr
Dec.: −865±76[2] mas/yr
Parallax (π)291 ± 50[2] mas
Distance11.2+2.3
−1.6[3] ly
(3.44+0.71
−0.50[3] pc)
Other designations
WISE J035000.32−565830.2,[1]
WISE 0350−5658[1]
Database references
SIMBADdata

WISE J035000.32−565830.2 (designation abbreviated to WISE 0350−5658) is a brown dwarf of spectral class Y1,[1] located in constellation Reticulum, the nearest known star/brown dwarf in this constellation. Being approximately 11.2 light-years from Earth,[3] it is one of the Sun's nearest neighbors.

Discovery

WISE 0350−5658 was discovered in 2012 by J. Davy Kirkpatrick and colleagues from data collected by the Wide-field Infrared Survey Explorer (WISE) in the infrared at a wavelength of 40 cm (16 in), whose mission lasted from December 2009 to February 2011. In 2012 Kirkpatrick et al. published a paper in The Astrophysical Journal, where they presented the discovery of seven new brown dwarfs of spectral type Y that had been found by WISE, among which was WISE 0350−5658.[1]

Distance

WISE 0350−5658 is one of the nearest known brown dwarfs: its trigonometric parallax is 0.291 ± 0.050 arcsecond[2], corresponding to a direct inversion distance[3] of 3.44+0.71
−0.5 pc (11.2+2.3
−1.6 ly).

See also

The other six discoveries of brown dwarfs, published in Kirkpatrick et al. (2012):[1]

References

  1. 1 2 3 4 5 6 7 8 9 10 11 12 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. Bibcode:2012ApJ...753..156K. arXiv:1205.2122 Freely accessible. doi:10.1088/0004-637X/753/2/156.
  2. 1 2 3 4 Marsh, Kenneth A.; Wright, Edward L.; Kirkpatrick, J. Davy; Gelino, Christopher R.; Cushing, Michael C.; Griffith, Roger L.; Skrutskie, Michael F.; Eisenhardt, Peter R. (2013). "Parallaxes and Proper Motions of Ultracool Brown Dwarfs of Spectral Types Y and Late T". The Astrophysical Journal. 762 (2): 119. Bibcode:2013ApJ...762..119M. arXiv:1211.6977 Freely accessible. doi:10.1088/0004-637X/762/2/119.
  3. 1 2 3 4 Paterson, David.A. "Topics in Astronomy: Topic 8. Inappropriateness of the Lutz-Kelker equation for brown dwarfs". Retrieved on 24 September 2015.
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