WISE J073444.02−715744.0 (designation abbreviated to WISE 0734−7157) is a brown dwarf of spectral class Y0,[1] located in constellation Volans at approximately 43 light-years from Earth.[2] It is one of the furthest Y0 brown dwarfs known.

Quick Facts Constellation, Right ascension ...
WISE J073444.02−715744.0
Thumb
WISE 0734-7157 (faint orange "star" at the lower right)
Credit: NIRCam
Observation data
Epoch J2000[1]      Equinox J2000[1]
Constellation Volans
Right ascension 07h 34m 44.02s[1]
Declination −71° 57 44[1]
Characteristics
Spectral type Y0[1]
Apparent magnitude (J (MKO-NIR filter system)) 20.41 ± 0.27[1]
Astrometry
Proper motion (μ) RA: −565.5 ± 1.3 mas/yr
Dec.: −78.9 ± 1.3 mas/yr
Parallax (π)75.0 ± 2.4 mas[2]
Distance43 ± 1 ly
(13.3 ± 0.4 pc)
Other designations
WISE J073444.02−715744.0,[1]
WISE 0734−7157[1]
Database references
SIMBADdata
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Discovery

WISE 0734−7157 was discovered in 2012 by J. Davy Kirkpatrick et al. from data, collected by Wide-field Infrared Survey Explorer (WISE) Earth-orbiting satelliteNASA infrared-wavelength 40 cm (16 in) space telescope, which 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 0734−7157.[1]

Distance

Currently the most accurate distance estimate of WISE 0734−7157 is a trigonometric parallax, published in 2019 by Kirkpatrick et al.: 13.3+0.4
−0.4
pc, or 43.5+1.4
−1.3
ly.[2]

See also

The other six discoveries of brown dwarfs, published in Kirkpatrick et al. (2012):[1]

Lists:

References

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