Pr0201 and Its Planet

Pr0201 is a star 589 light-years away with one known planet. Its reported mass is 1.17 solar masses, its reported radius is 1.17 solar radii, and its temperature is 6160 K. Each of these estimates is larger than the Sun's corresponding value, and its temperature is hotter than the Sun's.

The planet Pr0201 b was discovered in 2012 using the radial velocity method, which detects the wobble a planet's gravity induces in its star's motion. Repeated wobbles reveal the planet and its orbital period. Pr0201 b completes one orbit every 4.43 days, and its minimum mass is 172 Earth masses, larger than Earth's. A minimum mass is a lower bound on a planet's true mass, distinct from an ordinary mass estimate.