WISE J071322.55−291751.9 (designation abbreviated to WISE 0713−2917) is a brown dwarfofspectral class Y0,[1] located in constellation Canis Major at approximately 30 light-years from Earth.[3]
| |
Observation data Epoch J2000[1] Equinox J2000[1] | |
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Constellation | Canis Major |
Right ascension | 07h13m 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: 354.1 ± 0.9 mas/yr[2] Dec.: −410.3 ± 0.9 mas/yr[2] |
Parallax (π) | 109.3 ± 2.1 mas[2] |
Distance | 29.8 ± 0.6 ly (9.1 ± 0.2 pc) |
Details | |
Temperature | 464 ± 88[2] K |
Other designations | |
Database references | |
SIMBAD | data |
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 dwarfsofspectral type Y, among which also was WISE 0713−2917.[1]
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).[3] An improved parallax was published in 2021, placing WISE 0713−2917 at around 30 light years.[2]
Mass estimates are 19−33 MJ[4] and 13−19 MJ[5] for WISE 0713−2917 depending on the study. No evidence for it being a binary was detected.[4]
Lists:
The other six discoveries of brown dwarfs, published in Kirkpatrick et al. (2012):[1]