HD 28678 and Its Planet

HD 28678 is a star 619 light-years away with a spectral type of G8 IV. It is 2.88 billion years old and has a mass of 1.41 solar masses, a radius of 3.71 solar radii, and a temperature of 5070 K. Its reported mass and radius estimates are larger than the Sun's, while its reported temperature is cooler than the Sun's. One planet orbits this host.

HD 28678 b was discovered in 2011 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. The planet has a minimum mass of 490 Earth masses, a lower bound on its true mass, and an orbital period of 380 days. Its minimum mass is larger than Earth's and roughly 1.54 times Jupiter's mass.