About this world
HD 152079 b is a gas giant orbiting HD 152079, a yellow, Sun-like star (type G6V) 287 light-years from Earth. It is about 1.2 times the size of Jupiter (its size estimated from its mass), with at least 2.7 Jupiter masses (a minimum, measured by radial velocity). It completes an orbit every 7.99 years at 4.2 AU from its star, on a strongly elongated orbit (e = 0.53).
Its equilibrium temperature is about 148 K (−125 °C): too cold for liquid water on its surface. At its size it almost certainly keeps a deep envelope of hydrogen and helium.
It was discovered in 2009 by radial velocity with Las Campanas Observatory. The star wobbles toward and away from us, Doppler-shifting its spectrum.