About this world
HD 145377 b is a gas giant orbiting HD 145377, a yellow, Sun-like star (type G3V) 174 light-years from Earth. It is about 1.1 times the size of Jupiter (its size estimated from its mass), with at least 6 Jupiter masses (a minimum, measured by radial velocity). It completes an orbit every 104 days at 0.45 AU from its star, on a strongly elongated orbit (e = 0.31).
Its equilibrium temperature is about 443 K (170 °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 La Silla Observatory. The star wobbles toward and away from us, Doppler-shifting its spectrum.