About this world
Kepler-1550 b is a sub-Neptune orbiting Kepler-1550, a yellow, Sun-like star 3.85 thousand light-years from Earth. It is about 3 times the size of Earth. It completes an orbit every 226 days at 0.77 AU from its star.
Its equilibrium temperature is about 348 K (75 °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 2016 by transit with Kepler. A planet crosses its star and dims it by a tiny, periodic fraction.