Astronomy:WISE 0713−2917
Coordinates: 
07h 13m 22.55s, −29° 17′ 51.9″
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Canis Major |
| Right ascension | 07h 13m 22.55s[1] |
| Declination | −29° 17′ 51.9″[1] |
| Characteristics | |
| Spectral type | Y0[1] |
| Apparent magnitude (J (MKO-NIR filter system)) | 19.64 ± 0.15[1] |
| Apparent magnitude (J (SOAR/OSIRIS)) | 20.06 ± 0.21[1] |
| Apparent magnitude (H (MKO-NIR filter system)) | >19.3[1] |
| Apparent magnitude (H (SOAR/OSIRIS)) | 21.16 ± 0.66[1] |
| Astrometry | |
| Proper motion (μ) | RA: 388 ± 20[2] mas/yr Dec.: −419 ± 22[2] mas/yr |
| Parallax (π) | 106 ± 13[2] mas |
| Distance | approx. 31 ly (approx. 9 pc) |
| Other designations | |
| Database references | |
| SIMBAD | data |
WISE J071322.55−291751.9 (designation abbreviated to WISE 0713−2917) is a brown dwarf of spectral class Y0,[1] located in constellation Canis Major at approximately 23 light-years from Earth.[1]
Discovery
WISE 0713−2917 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 discovery of seven new found by WISE brown dwarfs of spectral type Y, among which also was WISE 0713−2917.[1]
Distance
Currently the most accurate distance estimate of WISE 0713−2917 is a trigonometric parallax, published in 2014 by Beichman et al.: 0.106 ± 0.013 arcsec, corresponding to a distance of 9.4 ± 1.2 pc (30.7 ± 3.9 ly).[2]
See also
The other six discoveries of brown dwarfs, published in Kirkpatrick et al. (2012):[1]
- WISE 0146+4234 (Y0)
- WISE 0350−5658 (Y1)
- WISE 0359−5401 (Y0)
- WISE 0535−7500 (≥Y1)
- WISE 0734−7157 (Y0)
- WISE 2220−3628 (Y0)
References
- ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 1.13 Kirkpatrick, J. Davy; Gelino, Christopher R.; Cushing, Michael C.; Mace, Gregory N.; Griffith, Roger L.; Skrutskie, Michael F.; Marsh, Kenneth A.; Wright, Edward L. 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 Beichman, C.; Gelino, Christopher R.; Kirkpatrick, J. Davy; Cushing, Michael C.; Dodson-Robinson, Sally; Marley, Mark S.; Morley, Caroline V.; Wright, E. L. (2014). "WISE Y Dwarfs As Probes of the Brown Dwarf-Exoplanet Connection". The Astrophysical Journal 783 (2): 68. doi:10.1088/0004-637X/783/2/68. Bibcode: 2014ApJ...783...68B.
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