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Brown dwarf

DENIS J0255-4700

Also DENIS-P J0255-4700

Open in Ouranos

A brown dwarf — too light to shine like a star — one of the Sun's neighbours within 20 light-years.

Measured

Distance
16 light-years
Constellation
Eridanus
Position (J2000)
RA 2h 55m 04s, Dec −47.01°

How far, from the Sun

15.9 light-years. To cross it:

  • Light15.9 years
  • Voyager 1's speed282,000 years
  • Driving at 100 km/h171 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 lies close to the boundary between L and T brown dwarfs, where silicate and iron clouds are thought to break up or disappear.
  • Spectral type L9 (SIMBAD).

Where this comes from

  • Gaia DR3 parallax 205.4251 ± 0.1857 mas, Gaia DR3 4752399493622045696 (Gaia Collaboration 2023, A&A 674, A1)
  • This research has made use of the SIMBAD database, CDS, Strasbourg, France (Wenger et al. 2000, A&AS 143, 9).
  • This research has made use of the VizieR catalogue access tool, CDS, Strasbourg, France (DOI: 10.26093/cds/vizier).

Every catalogue Ouranos draws is credited on the credits page.