About this world
HD 13189 b is a gas giant orbiting HD 13189, a giant star (type K2) 1.62 thousand light-years from Earth. It is about 1.1 times the size of Jupiter (its size estimated from its mass), with at least 11 Jupiter masses (a minimum, measured by radial velocity). It completes an orbit every 472 days at 1.3 AU from its star, on a strongly elongated orbit (e = 0.27).
Its equilibrium temperature is about 1,116 K (843 °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 2005 by radial velocity with Thueringer Landessternwarte Tautenburg. The star wobbles toward and away from us, Doppler-shifting its spectrum.