In recent years, scientists have discovered hundreds of planets orbiting other stars. So...

In recent years, scientists have discovered hundreds of planets orbiting other stars. Some of these planets are in orbits that are similar to that of earth, which orbits the sun ) at a distance of called 1 astronomical unit (1 au). Others have extreme orbits that are much different from anything in our solar system. Problem relate to some of these planets that follow circular orbits around other stars.

Kepler-42c orbits at a very close 0.0058 au from a small star with a mass that is 0.13 that of the sun. How long is a “year” on this world?