About this world
KIC 3558849 b is a Neptune-like planet orbiting KIC 3558849, a yellow-white F-type star 3.97 thousand light-years from Earth. It is about 0.62 times the size of Jupiter. It completes an orbit every 3.62 years at 2.3 AU from its star.
Its equilibrium temperature is about 230 K (−43 °C), which places it in the conservative habitable zone: the band where liquid water could exist on a rocky surface. At its size it almost certainly keeps a deep envelope of hydrogen and helium.
It was discovered in 2015 by transit with Kepler. A planet crosses its star and dims it by a tiny, periodic fraction.