Confirmed exoplanet · Database record + computed analysis
PSR J2322-2650 b
A confirmed world orbiting PSR J2322-2650, 750.2 light-years away.
A gas giant
13.90 Earth radii, Jupiter-class (Jupiter is 11.2). At only 252.6 Earth masses for that size, it must be substantially gas or volatile ices: puffy, not rocky. Orbiting this close, it is a classic 'hot Jupiter', a giant that migrated inward from where it formed.
The orbit
Its year lasts about 7.8 hours, making it an ultra-short-period planet skimming its star.
How far is that, really?
At 750 light-years, tonight's light from this system left it around the year 1275. A Voyager-speed probe would need roughly 13,272,269 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 Parkes Observatory.
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.