Planets of HD 87816

HD 87816 is a K-type giant star 435 light-years away. Its spectral type is K0 III, and it is more massive and larger than the Sun, with 2.41 solar masses, 9 solar radii, and a temperature of 4990 K that is cooler than the Sun's. Two planets are known to orbit this star, both discovered in 2025 by the radial velocity method, which detects the wobble a planet's gravity induces in its star's motion.

HD 87816 b has a minimum mass of 2140 Earth masses, a lower bound on its true mass that is larger than Earth's and roughly 6.74 times Jupiter's mass. Its orbital period is 484 days. Among the listed planets, it has the shortest year.

HD 87816 c has a minimum mass of 3880 Earth masses, also a lower bound and larger than Earth's, roughly 12.2 times Jupiter's mass. Its orbital period is 7600 days. Among the listed planets, it has the longest year. It also has the largest minimum mass among the listed planets, while HD 87816 b has the smallest.