About this world
Kepler-1655 b is a sub-Neptune orbiting Kepler-1655, a yellow, Sun-like star (type G0V) 696 light-years from Earth. It is about 2.2 times the size of Earth and holds 5.4 Earth masses. It completes an orbit every 11.9 days at 0.1 AU from its star, closer than Mercury is to the Sun.
Its equilibrium temperature is about 938 K (665 °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 2018 by transit with Kepler. A planet crosses its star and dims it by a tiny, periodic fraction.