TYC 1422-614-1: A Distant Star With Two Known Worlds

TYC 1422-614-1 is a star located 2190 light-years away, and it hosts two planets. The star is estimated to be 5.89 billion years old, with a mass of 1.15 solar masses, a radius of 6.85 solar radii, and a temperature of 4810 K. Its reported radius is larger than the Sun's, while its reported temperature is cooler than the Sun's.

Both planets were discovered in 2014 using the radial velocity method, which measures the wobble a planet's gravity induces in its star's motion; repeated wobbles reveal the planet and its orbital period.

TYC 1422-614-1 b has a minimum mass of 795 Earth masses and an orbital period of 198 days. Its minimum mass is larger than Earth's and roughly 2.5 times Jupiter's mass. Among the listed planets, it has the shortest year by reported estimates.

TYC 1422-614-1 c has a minimum mass of 3180 Earth masses and an orbital period of 559 days. Its minimum mass is larger than Earth's and roughly 10 times Jupiter's mass. Among the listed planets, it has the longest year and the largest minimum mass, while TYC 1422-614-1 b has the smallest minimum mass.

A minimum mass is a lower bound on a planet's true mass, so the actual masses of these worlds could be higher.