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Star with planets

AU Microscopii

Also AU Mic · GJ 803

Open in Ouranos

A young red dwarf with an edge-on disc of dust and transiting planets.

Measured

Distance
32 light-years
Constellation
Microscopium
Position (J2000)
RA 20h 45m 09s, Dec −31.34°

How far, from the Sun

31.7 light-years. To cross it:

  • Light31.7 years
  • Voyager 1's speed563,000 years
  • Driving at 100 km/h342 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 only a few tens of millions of years old.
  • Its distance comes from a Gaia parallax: the tiny yearly shift in its position as the Earth circles the Sun.

Where this comes from

  • Gaia DR3 parallax 102.9432 ± 0.0231 mas, Gaia DR3 6794047652729201024 (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.