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Brown dwarf

Luhman 16

Also WISE J104915.57-531906.1

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Luhman 16 — Artist's impression of Luhman 16B, from VLT weather maps
Artist's impression, not a photograph.Artist's impression of Luhman 16B, from VLT weather maps. Credit: ESO/I. Crossfield/N. Risinger (skysurvey.org). Licence: CC BY 4.0. Source

A pair of brown dwarfs orbiting each other, the nearest known brown dwarfs to the Sun.

Measured

Distance
6.51 light-years
Constellation
Vela
Position (J2000)
RA 10h 49m 19s, Dec −53.32°

How far, from the Sun

6.51 light-years. To cross it:

  • Light6.51 years
  • Voyager 1's speed116,000 years
  • Driving at 100 km/h70.3 million years

Voyager 1 at the speed it moved outward over the year to 2026-10-25 (JPL Horizons). Driving: nonstop, never refuelling.

Facts

  • It is the third-closest known system to the Sun, after Alpha Centauri and Barnard's Star.
  • The two have about 34 to 35 and 28 to 29 times Jupiter's mass.
  • Astronomers have mapped what are probably patchy clouds on one of them.

How it was found

  • Kevin Luhman discovered the pair in 2013 using WISE data.

Where this comes from

  • Bedin et al. 2017, MNRAS 470, 1140, HST astrometry (absolute parallax 501.398 mas)

Every catalogue Ouranos draws is credited on the credits page.