WISE 1405+5534
Brown dwarf in the constellation Ursa Major / From Wikipedia, the free encyclopedia
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WISEPC J140518.40+553421.4 (abbreviated WISE 1405+5534) is a brown dwarf of spectral class Y0 (pec?),[1][2] located in constellation Ursa Major at approximately 20.6 light-years from Earth.[4] It is one of the Sun's nearest neighbors.
Quick Facts Constellation, Right ascension ...
Observation data Epoch MJD 55545.11[1] Equinox J2000[1] | |
---|---|
Constellation | Ursa Major |
Right ascension | 14h 05m 18.27s[1] |
Declination | 55° 34′ 21.22″[1] |
Characteristics | |
Spectral type | Y0 (pec?)[1][2] |
Apparent magnitude (J (MKO filter system)) | 20.20 ± 0.13[1] |
Apparent magnitude (H (MKO filter system)) | 21.45 ± 0.41[1] |
Astrometry | |
Proper motion (μ) | RA: −2263 ± 47[3] mas/yr Dec.: 288 ± 41[3] mas/yr |
Parallax (π) | 158.2 ± 2.6 mas[4] |
Distance | 20.6 ± 0.3 ly (6.3 ± 0.1 pc) |
Details | |
Mass | 30[5] MJup |
Radius | 0.86[5] RJup |
Surface gravity (log g) | 5.0[5] cgs |
Temperature | 350[5] K |
Other designations | |
Database references | |
SIMBAD | data |
Location of WISE 1405+5534 in the constellation Ursa Major |
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