About this world
KOI-351 f is a sub-Neptune orbiting KOI-351, a yellow-white F-type star 2.77 thousand light-years from Earth. It is about 2.9 times the size of Earth. It completes an orbit every 125 days at 0.48 AU from its star.
Its equilibrium temperature is about 407 K (134 °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 2013 by transit with Kepler. A planet crosses its star and dims it by a tiny, periodic fraction. KOI-351 has 8 known planets; the others are KOI-351 b, KOI-351 c, Kepler-90 i, KOI-351 d, KOI-351 e, KOI-351 g and KOI-351 h.