WISE 0350−5658
Coordinates: 
03h 50m 00.32s, −56° 58′ 30.2″
| 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 |
| Distance | 11.2+2.3 −1.6[3] ly (3.44+0.71 −0.50[3] pc) |
| Other designations | |
| Database references | |
| SIMBAD | data |
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]
- WISE 0146+4234 (Y0)
- WISE 0359−5401 (Y0)
- WISE 0535−7500 (≥Y1)
- WISE 0713−2917 (Y0)
- WISE 0734−7157 (Y0)
- WISE 2220−3628 (Y0)
References
- 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. arXiv:1205.2122
. Bibcode:2012ApJ...753..156K. doi:10.1088/0004-637X/753/2/156. - 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. arXiv:1211.6977. Bibcode:2013ApJ...762..119M. doi:10.1088/0004-637X/762/2/119.
- 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.