Confirmed exoplanet · Database record + computed analysis
HIP 66074 b
A confirmed world orbiting HIP 66074, 115.6 light-years away.
A gas giant
12.90 Earth radii, Jupiter-class (Jupiter is 11.2).
The orbit
Its year takes 311 Earth days (0.9 Earth years). The orbit is strongly stretched (eccentricity 0.95), so its distance from the star, and with it the climate, swings dramatically.
Temperature and starlight
Its equilibrium temperature (the airless-world estimate) is about -80 °C. It receives 0.24 times Earth's starlight, the same order as our own world.
Its sun
Its star is an orange K-type (4,300 K): cooler and longer-lived than the Sun, a class some astronomers consider ideal for habitability.
How far is that, really?
At 116 light-years, tonight's light from this system left it around the year 1910. A Voyager-speed probe would need roughly 2,045,303 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 2023 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.