Nearby star

Gliese 229

Also GJ 229 · HD 42581

A red dwarf with a famous brown dwarf companion, Gliese 229 B, now known to be a close pair.

Measured

Distance
19 light-years
Constellation
Lepus
Position (J2000)
RA 6h 10m 35s, Dec −21.86°

How far, from the Sun

18.8 light-years. To cross it:

  • Light18.8 years
  • Voyager 1's speed334,000 years
  • Driving at 100 km/h203 million years

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

Facts

  • Gliese 229 B, first imaged in 1994 and announced in 1995, was one of the first two brown dwarfs confirmed; Teide 1 was published weeks earlier.
  • Spectral type M1V (SIMBAD).

How it was found

  • In 2024 Gliese 229 B was found to be two brown dwarfs orbiting each other every 12 days.

Where this comes from

  • Gaia DR3 parallax 173.5740 ± 0.0170 mas, Gaia DR3 2940856402123426176 (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.