Confirmed exoplanet · Database record + computed analysis
PSR B0329+54 b
A confirmed world orbiting PSR B0329+54, 1,646.9 light-years away.
An Earth-sized world
1.22 times Earth's radius, squarely in the terrestrial size range. With 2.0 Earth masses packed into that size, its density points to rock and iron rather than gas.
The orbit
Its year takes 10,140 Earth days (27.8 Earth years).
How far is that, really?
At 1,647 light-years, tonight's light from this system left it around the year 379. A Voyager-speed probe would need roughly 29,137,427 years to get there.
How we found it
It was found by pulsar timing: irregularities in a dead star's metronome-precise radio pulses. Planets around pulsars either survived a supernova or formed from its wreckage. The discovery was announced in 2017 from Multiple Facilities.
Everything above is computed from the archive’s measured values for this planet. Where a quantity is missing, the statement is omitted rather than guessed.
About this record
The measured values come from the NASA Exoplanet Archive, and any missing value has not been determined yet; the Atlas never fills gaps with guesses. More standout worlds: Proxima b, TRAPPIST-1e, K2-18 b, 55 Cancri e, and the detection methods that found them all.