About Kepler-669 b
Kepler-669 b is a rare exoplanet. It lies about 6,729.9 light-years from Earth, shines at apparent magnitude 15.74, has an equilibrium temperature near 1,243 K and spans roughly 4.83 Earth radii.
It orbits closer to its star than Mercury does to the Sun, completing a lap in less time than Mercury takes.