About this world
EPIC 220674823 c is a sub-Neptune orbiting EPIC 220674823, a yellow, Sun-like star (type G5V) 798 light-years from Earth. It is about 2.7 times the size of Earth and holds 7.9 Earth masses. It completes an orbit every 13.3 days at 0.11 AU from its star, closer than Mercury is to the Sun.
Its equilibrium temperature is about 838 K (565 °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 2016 by transit with K2. A planet crosses its star and dims it by a tiny, periodic fraction. EPIC 220674823 has 2 known planets; the others are EPIC 220674823 b.