About this world
GJ 86 b is a gas giant orbiting GJ 86, an orange dwarf (type K1V) 35.2 light-years from Earth. It is about 1.2 times the size of Jupiter (its size estimated from its mass), with at least 4.4 Jupiter masses (a minimum, measured by radial velocity). It completes an orbit every 15.8 days at 0.11 AU from its star, closer than Mercury is to the Sun.
Its equilibrium temperature is about 661 K (388 °C): far too hot for liquid water on its surface. At its size it almost certainly keeps a deep envelope of hydrogen and helium.
It was discovered in 1999 by radial velocity with La Silla Observatory. The star wobbles toward and away from us, Doppler-shifting its spectrum.