About this world
HD 147513 b is a gas giant orbiting HD 147513, a yellow, Sun-like star (type G3/5V) 42.1 light-years from Earth. It is about 1.2 times the size of Jupiter (its size estimated from its mass), with at least 1.2 Jupiter masses (a minimum, measured by radial velocity). It completes an orbit every 528 days at 1.3 AU from its star, on a strongly elongated orbit (e = 0.26).
Its equilibrium temperature is about 244 K (−29 °C), which places it in the conservative habitable zone: the band where liquid water could exist on a rocky surface. At its size it almost certainly keeps a deep envelope of hydrogen and helium.
It was discovered in 2003 by radial velocity with La Silla Observatory. The star wobbles toward and away from us, Doppler-shifting its spectrum.