WISE 0734−7157
Coordinates: 
07h 34m 44.02s, −71° 57′ 44″
| Observation data Epoch J2000[1]:{{{3}}} Equinox J2000[1]:{{{3}}} |
|
|---|---|
| Constellation | Volans |
| Right ascension | 07h 34m 44.02s[1]:{{{3}}} |
| Declination | −71° 57′ 44″[1]:{{{3}}} |
| Characteristics | |
| Spectral type | Y0[1]:{{{3}}} |
| Apparent magnitude (J (MKO-NIR filter system)) | 20.41 ± 0.27[1]:{{{3}}} |
| Astrometry | |
| Distance | ~ 34.9[1]:{{{3}}} ly (~ 10.7[1]:{{{3}}} pc) |
| Other designations | |
WISE J073444.02−715744.0 (designation abbreviated to WISE 0734−7157) is a brown dwarf of spectral class Y0,[1]:{{{3}}} located in constellation Volans at approximately 35 light-years from Earth.[1]:{{{3}}} It is one of the furthest Y0 brown dwarfs known.
Contents
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 satellite — NASA 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]:{{{3}}}
Distance
Trigonometric parallax of WISE 0734−7157 is not yet measured. Therefore, there are only distance estimates of this object, obtained by indirect — spectrofotometric — means (see table).
WISE 0734−7157 distance estimates
| Source | Parallax, mas | Distance, pc | Distance, ly | Ref. |
|---|---|---|---|---|
| Kirkpatrick et al. (2012), Table 8 | 10.7 | 34.9 | [1]:{{{3}}} |
Non-trigonometric distance estimates are marked in italic.
See also
The other six discoveries of brown dwarfs, published in Kirkpatrick et al. (2012):[1]:{{{3}}}
- WISE 0146+4234 (Y0)
- WISE 0350−5658 (Y1)
- WISE 0359−5401 (Y0)
- WISE 0535−7500 (≥Y1)
- WISE 0713−2917 (Y0)
- WISE 2220−3628 (Y0)
References
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