About this world
BEBOP-3 b is a gas giant orbiting BEBOP-3, a yellow-white F-type star 388 light-years from Earth. It is about 1.3 times the size of Jupiter (its size estimated from its mass), with at least 0.56 Jupiter masses (a minimum, measured by radial velocity). It completes an orbit every 547 days at 1.4 AU from its star, on a strongly elongated orbit (e = 0.25).
Its equilibrium temperature is about 288 K (15 °C), which places it in the optimistic 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 2025 by radial velocity with Haute-Provence Observatory. The star wobbles toward and away from us, Doppler-shifting its spectrum.