KELT-6 and Its Two Known Planets

KELT-6 is an F8 star located 785 light-years away, with an age of 6.1 billion years, a mass of 1.09 solar masses, a radius of 1.58 solar radii, and a temperature of 6100 K. Its reported mass and radius estimates are larger than the Sun's, and its reported temperature is hotter than the Sun's. Two planets are known to orbit this host.

KELT-6 b was discovered in 2014 by the transit method and is classified as Jupiter-like, a size class that exceeds 4 times Earth's radius. Its radius is 14.6 Earth radii. Its mass is 165 Earth masses, and both its reported radius and mass estimates are larger than Earth's. Its mean density is 0.294 g/cm³, 0.0534 times Earth's. KELT-6 b completes an orbit in 7.85 days.

KELT-6 c was discovered in 2015 by 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. Its minimum mass, a lower bound on its true mass, is 1180 Earth masses and is larger than Earth's, roughly 3.71 times Jupiter's mass. KELT-6 c completes an orbit in 1280 days.