Confirmed exoplanet · Database record + computed analysis
Gaia-5 b
A confirmed world orbiting Gaia-5, 134.3 light-years away.
A gas giant
12.10 Earth radii, Jupiter-class (Jupiter is 11.2). With 6633.1 Earth masses packed into that size, its density points to rock and iron rather than gas.
The orbit
Its year takes 359 Earth days (1.0 Earth years). The orbit is strongly stretched (eccentricity 0.64), so its distance from the star, and with it the climate, swings dramatically.
Its sun
Its star is a red dwarf (3,447 K surface): small, dim, flare-prone, and destined to outlive the Sun many times over.
How far is that, really?
At 134 light-years, tonight's light from this system left it around the year 1891. A Voyager-speed probe would need roughly 2,376,388 years to get there.
How we found it
It was found by astrometry, which measures the star's tiny sideways drift across the sky. The discovery was announced in 2025 from European Space Agency (ESA) Gaia Satellite.
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.