About Kepler-291 c
Kepler-291 c is a rare exoplanet. It lies about 5,826.7 light-years from Earth, shines at apparent magnitude 16.22, has an equilibrium temperature near 1,035 K and spans roughly 1.88 Earth radii.
It orbits closer to its star than Mercury does to the Sun, completing a lap in less time than Mercury takes.