HD 129445

HD 129445 is a yellow dwarf star located approximately 220 light-years away in the constellation Boötes. It is similar in size and temperature to our Sun, being a G-type main-sequence star. HD 129445 is slightly more massive and luminous than the Sun.

The star is notable for hosting an extrasolar planet, HD 129445 b (also designated HIP 71984 b), a gas giant discovered in 2004 using the radial velocity method. This method detects planets by observing the wobble in the star's motion caused by the gravitational pull of the orbiting planet.

HD 129445 b is a Jovian planet with a mass several times that of Jupiter. It orbits its star at a relatively large distance, further out than Earth orbits the Sun. The long orbital period and large distance from its star make HD 129445 b a valuable target for further study to understand the formation and evolution of planetary systems.