About this world
HD 102272 b is a gas giant orbiting HD 102272, a giant star (type K0) 1.13 thousand light-years from Earth. It is about 1.2 times the size of Jupiter (its size estimated from its mass), with at least 4.9 Jupiter masses (a minimum, measured by radial velocity). It completes an orbit every 128 days at 0.51 AU from its star.
Its equilibrium temperature is about 1,038 K (765 °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 2008 by radial velocity with McDonald Observatory. The star wobbles toward and away from us, Doppler-shifting its spectrum.