About this world
KOI-3680 b is a gas giant orbiting KOI-3680, a yellow, Sun-like star 3.01 thousand light-years from Earth. It is about 0.99 times the size of Jupiter and holds 1.9 Jupiter masses. It completes an orbit every 141 days at 0.53 AU from its star, on a strongly elongated orbit (e = 0.5).
Its equilibrium temperature is about 347 K (74 °C): too cold for liquid water on its surface. At its size it almost certainly keeps a deep envelope of hydrogen and helium.
It was discovered in 2018 by transit with Kepler. A planet crosses its star and dims it by a tiny, periodic fraction.