Astronomy:WISE 0350−5658
Coordinates: 
03h 50m 00.32s, −56° 58′ 30.2″
  WISE 0350−5658 Location of WISE 0350−5658 in the constellation Reticulum | |
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| 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: −208.7±1.0[2] mas/yr Dec.: −575.4±1.1[2] mas/yr |
| Parallax (π) | 176.4 ± 2.3[2] mas |
| Distance | 18.5 ± 0.2 ly (5.67 ± 0.07 pc) |
| Details | |
| Temperature | 388±88[2] K |
| 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 18.5 light-years from Earth,[2] 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 0.184 ± 0.010 arcsecond, corresponding to a direct distance of 5.4 pc (17.7 ly).[3]
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
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 Kirkpatrick, J. Davy et al. (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. doi:10.1088/0004-637X/753/2/156. Bibcode: 2012ApJ...753..156K.
- ↑ 2.0 2.1 2.2 2.3 Kirkpatrick, J. Davy; Gelino, Christopher R.; Faherty, Jacqueline K.; Meisner, Aaron M.; Caselden, Dan; Schneider, Adam C.; Marocco, Federico; Cayago, Alfred J. et al. (2021). "The Field Substellar Mass Function Based on the Full-sky 20 pc Census of 525 L, T, and y Dwarfs". The Astrophysical Journal Supplement Series 253 (1): 7. doi:10.3847/1538-4365/abd107. Bibcode: 2021ApJS..253....7K.
- ↑ Leggett, S. K. et al. (2017). "The Y-type Brown Dwarfs: Estimates of Mass and Age from New Astrometry, Homogenized Photometry, and Near-infrared Spectroscopy". The Astrophysical Journal 842 (2): 118. doi:10.3847/1538-4357/aa6fb5. Bibcode: 2017ApJ...842..118L.
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