Brown dwarf
WISE 0855-0714
Also WISE J085510.83-071442.5
The coldest known brown dwarf, a dark, Jupiter-like object drifting near the Sun.
Measured
- Distance
- 7.43 light-years
- Constellation
- Hydra
- Position (J2000)
- RA 8h 55m 11s, Dec −7.25°
How far, from the Sun
7.43 light-years. To cross it:
- Light7.43 years
- Voyager 1's speed132,000 years
- Driving at 100 km/h80.2 million years
Voyager 1 at the speed it moved outward over the year to 2026-10-25 (JPL Horizons). Driving: nonstop, never refuelling.
Facts
- Its temperature is roughly 250 to 290 kelvin, around the freezing point of water.
- Its mass is estimated at a few to about ten times Jupiter's.
How it was found
- Kevin Luhman discovered it in 2014 using WISE and Spitzer data.
Where this comes from
- Kirkpatrick et al. 2021, ApJS 253, 7, Spitzer parallax (439.0 ± 2.4 mas)
Every catalogue Ouranos draws is credited on the credits page.