Confirmed exoplanet · Database record + computed analysis
GU Psc b
A confirmed world orbiting GU Psc, 155.1 light-years away.
A gas giant
14.18 Earth radii, Jupiter-class (Jupiter is 11.2). With 3591.3 Earth masses packed into that size, its density points to rock and iron rather than gas.
Temperature and starlight
Its equilibrium temperature (the airless-world estimate) is about 777 °C. Hotter than Venus's surface.
Its sun
Its star is an orange K-type (4,032 K), M3: cooler and longer-lived than the Sun, a class some astronomers consider ideal for habitability.
How far is that, really?
At 155 light-years, tonight's light from this system left it around the year 1870. A Voyager-speed probe would need roughly 2,743,903 years to get there.
How we found it
It was directly imaged, one of the rare planets actually photographed as its own point of light, possible only for young, hot, wide-orbiting giants. The discovery was announced in 2014 from Gemini 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.