01h46m56.66s, +42° 34′10″
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| Observation data Epoch J2000[1] Equinox J2000[1] | |
|---|---|
| Constellation | Andromeda |
| Right ascension | 01h46m 56.66s[1] |
| Declination | 42° 34′ 10″[1] |
| Characteristics | |
| Spectral type | T9/Y0[2] |
| Apparent magnitude (H) | 18.71 ± 0.24[1] |
| Astrometry | |
| Proper motion (μ) | RA: −455±4[3] mas/yr Dec.: −24±4[3] mas/yr |
| Parallax (π) | 54 ± 5 mas[3] |
| Distance | 60 ± 6 ly (19 ± 2 pc) |
| Other designations | |
| Database references | |
| SIMBAD | data |
WISE J014656.66+423410.0 (designation abbreviated to WISE 0146+4234) is a binary brown dwarfofspectral classes T9 and Y0[2] located in the constellation Andromeda. It is approximately 60 light-years from Earth.[3]
WISE 0146+4234 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-wavelength40cm (16in) 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 dwarfsofspectral type Y, among which also was WISE 0146+4234.[1]
The distance of WISE 0146+4234 was initially estimated to be 20 light-years from earth.[1] Later measurements of its stellar parallax showed that it was actually 60 light-years away.[3]
The other six discoveries of brown dwarfs, published in Kirkpatrick et al. (2012):[1]
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