WISE 0713−2917

WISE J071322.55−291751.9 (designation abbreviated to WISE 0713−2917) is a brown dwarf of spectral class Y0,^[2] located in constellation Canis Major at approximately 30 light-years from Earth.^[5]

WISE J071322.55−291751.9

WISE 0713-2917 Credit: unWISE
Observation data Epoch J2000      Equinox J2000
Constellation	Canis Major[1]
Right ascension	07h 13m 22.55s[2]
Declination	−29° 17′ 51.9″[2]
Characteristics
Spectral type	Y0[2]
Apparent magnitude (J (MKO-NIR filter system))	19.64 ± 0.15[2]
Apparent magnitude (J (SOAR/OSIRIS))	20.06 ± 0.21[2]
Apparent magnitude (H (MKO-NIR filter system))	>19.3[2]
Apparent magnitude (H (SOAR/OSIRIS))	21.16 ± 0.66[2]
Astrometry
Proper motion (μ)	RA: 352.26 ±0.35 mas/yr[3] Dec.: −408.52 ±0.32 mas/yr[3]
Parallax (π)	110.11±0.61 mas[3]
Distance	29.6 ± 0.2 ly (9.08 ± 0.05 pc)
Details
Temperature	464 ± 88[4] K
Other designations
WISE J071322.55−291751.9,[2] WISE 0713−2917[2]
Database references
SIMBAD	data

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.^[2]

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).^[5] An improved parallax was published in 2021, placing WISE 0713−2917 at around 30 light years.^[4]

Physical properties

Mass estimates are 19−33 M_J^[6] and 13−19 M_J^[7] for WISE 0713−2917 depending on the study. No evidence for it being a binary was detected.^[6]

See also

Lists:

• List of Y-dwarfs
• List of star systems within 25–30 light-years

The other six discoveries of brown dwarfs, published in Kirkpatrick et al. (2012):^[2]

• WISE 0146+4234 (Y0)
• WISE 0350−5658 (Y1)
• WISE 0359−5401 (Y0)
• WISE 0535−7500 (≥Y1)
• WISE 0734−7157 (Y0)
• WISE 2220−3628 (Y0)