About this world
HIP 113103 c is a sub-Neptune orbiting HIP 113103, an orange dwarf 151 light-years from Earth. It is about 2.4 times the size of Earth. It completes an orbit every 14.2 days at 0.1 AU from its star, closer than Mercury is to the Sun.
Its equilibrium temperature is about 585 K (312 °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 2023 by transit with Transiting Exoplanet Survey Satellite (TESS). A planet crosses its star and dims it by a tiny, periodic fraction. HIP 113103 has 2 known planets; the others are HIP 113103 b.