Star with a known planet

PSR B0329+54

PSR B0329+54 has one confirmed planet.

Measured

Distance
about 1,647 light-years
Confirmed planets
1

How far, from the Sun

About 1,650 light-years. To cross it:

  • Light1,650 years
  • Voyager 1's speed29.3 million years
  • Driving at 100 km/h17.8 billion years

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

How it was found

  • First planet found in 2017, by pulsar timing (NASA Exoplanet Archive).

Its planets

  • PSR B0329+54 b — 1.2 times Earth's width (estimated from its mass, not measured), about Earth-sized — probably rocky; its year lasts about 28 Earth years; found in 2017 by pulsar timing.

The NASA Exoplanet Archive's page

Where this comes from

  • NASA Exoplanet Archive, Planetary Systems Composite Parameters (fetched 2026-11-02). Composite values: where a planet's size or mass was not measured, the archive estimates it from the other.
  • This research has made use of the NASA Exoplanet Archive, which is operated by the California Institute of Technology, under contract with NASA under the Exoplanet Exploration Program.

Every catalogue Ouranos draws is credited on the credits page.