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White dwarf

Procyon B

Also Alpha Canis Minoris B

Open in Ouranos

The white dwarf that orbits Procyon, one of the brightest stars in the sky.

Measured

Distance
11 light-years
Constellation
Canis Minor
Position (J2000)
RA 7h 39m 18s, Dec +5.22°

How far, from the Sun

11.5 light-years. To cross it:

  • Light11.5 years
  • Voyager 1's speed204,000 years
  • Driving at 100 km/h124 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 orbits Procyon every 40.8 years.
  • J. M. Schaeberle first saw it in 1896.

Where this comes from

  • Hipparcos parallax 284.56 ± 1.26 mas (van Leeuwen 2007, A&A 474, 653) of Procyon A
  • 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.