Question

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 (Msun = 1.99 × 1030 kg) at a distance of 1.50 × 1011 m, called 1 astronomical unit (1 au). Others have extreme orbits that are much different from anything in our solar system. The following problem relates to one of these planets that follows circular orbit around its star. 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? Assume the orbital period of earth is 365 days. Answer: T= __ hrs

          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 (Msun = 1.99 × 1030
kg) at a distance of 1.50 × 1011 m, called 1 astronomical unit (1
au). Others have extreme orbits that are much different from
anything in our solar system. The following problem relates to one
of these planets that follows circular orbit around its star.
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? Assume the orbital period of earth is 365 days. 
Answer: T= __ hrs

Added by Andrew S.

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