About this world
HD 233604 b is a gas giant orbiting HD 233604, a giant star (type K5) 2.76 thousand light-years from Earth. It is about 1.1 times the size of Jupiter (its size estimated from its mass), with at least 6.6 Jupiter masses (a minimum, measured by radial velocity). It completes an orbit every 192 days at 0.75 AU from its star.
Its equilibrium temperature is about 883 K (609 °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 2013 by radial velocity with McDonald Observatory. The star wobbles toward and away from us, Doppler-shifting its spectrum.