About this world
HD 136352 c is a sub-Neptune orbiting HD 136352, a yellow, Sun-like star (type G4V) 47.9 light-years from Earth. It is about 2.9 times the size of Earth and holds 11 Earth masses. It completes an orbit every 27.6 days at 0.17 AU from its star, closer than Mercury is to the Sun.
Its equilibrium temperature is about 677 K (404 °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 2019 by radial velocity with La Silla Observatory. The star wobbles toward and away from us, Doppler-shifting its spectrum. HD 136352 has 3 known planets; the others are HD 136352 b and HD 136352 d.