WISE 1405+5534
WISEPC J140518.40+553421.4 (abbreviated WISE 1405+5534) is a brown dwarf of spectral class Y0 (pec?), located in constellation Ursa Major at approximately 25.3 light-years from Earth. It is one of the Sun's nearest neighbors.
| Observation data Epoch MJD 55545.11 Equinox J2000 | |
|---|---|
| Constellation | Ursa Major |
| Right ascension | 14h 05m 18.27s |
| Declination | 55° 34′ 21.22″ |
| Characteristics | |
| Spectral type | Y0 (pec?) |
| Apparent magnitude (J (MKO filter system)) | 20.20 ± 0.13 |
| Apparent magnitude (H (MKO filter system)) | 21.45 ± 0.41 |
| Astrometry | |
| Proper motion (μ) | RA: −2263 ± 47 mas/yr Dec.: 288 ± 41 mas/yr |
| Parallax (π) | 158.2 ± 2.6 mas |
| Distance | 20.6 ± 0.3 ly (6.3 ± 0.1 pc) |
| Details | |
| Mass | 30 MJup |
| Radius | 0.86 RJup |
| Surface gravity (log g) | 5.0 cgs |
| Temperature | 350 K |
| Other designations | |
| Database references | |
| SIMBAD | data |
WISE 1405+5534 Location of WISE 1405+5534 in the constellation Ursa Major | |
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