Confirmed exoplanet · Database record + computed analysis
GJ 86 b
A confirmed world orbiting GJ 86, 35.2 light-years away.
A gas giant
12.90 Earth radii, Jupiter-class (Jupiter is 11.2).
The orbit
Its year, one full orbit, takes just 15.8 Earth days.
Temperature and starlight
Its equilibrium temperature (the airless-world estimate) is about 388 °C. Above water's boiling point. It receives 33.7 times the starlight Earth gets.
Its sun
Its star is an orange K-type (5,182 K), K1V: cooler and longer-lived than the Sun, a class some astronomers consider ideal for habitability. The system holds 2 stars, so its skies have more than one sun.
How far is that, really?
At 35 light-years, tonight's light from this system left it around the year 1990. That is close by galactic standards, which makes it a prime target for follow-up telescopes. A Voyager-speed probe would need roughly 622,273 years to get there.
How we found it
It was found by the radial-velocity method: the planet's gravity swings its star in a small circle, and that wobble shows up as a rhythmic Doppler shift in the starlight. The wobble's size gives the planet's minimum mass. The discovery was announced in 1999 from La Silla 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.