CWISE J1055+5443
| Observation data Epoch 2000 Equinox 2000 | |
|---|---|
| Constellation | Ursa Major |
| Right ascension | 10h 55m 12.12s |
| Declination | 54° 43′ 28.3″ |
| Characteristics | |
| Evolutionary stage | sub-brown dwarf |
| Spectral type | Y0 pec ±0.5 |
| Apparent magnitude (JMKO) | 18.868 ±0.066 |
| Apparent magnitude (W1) | 17.306 ±0.127 |
| Apparent magnitude (W2) | 14.366 ±0.044 |
| Apparent magnitude (W3) | 11.553 ±0.196 |
| Astrometry | |
| Total velocity | >50.2 ±5.2 km/s |
| Proper motion (μ) | RA: -1518.7 ± 2.1 mas/yr Dec.: -222.7 ± 2.0 mas/yr |
| Parallax (π) | 145.0±14.7 mas |
| Distance | approx. 22 ly (approx. 6.9 pc) |
| Details | |
| Mass | 4–6 MJup |
| Surface gravity (log g) | ≤4.5 cgs |
| Temperature | 500 ± 150 K |
| Age | 180 ± 9 Myr |
| Other designations | |
| CWISE J105512.11+544328.3, WISEA J105512.93+544329.7 | |
| Database references | |
| SIMBAD | data |
CWISE J1055+5443 (CWISE J105512.11+544328.3) is a (sub-)brown dwarf with the spectral type of Y0 (pec). It is around 22 light years distant from earth.