Solve the all parts of following question:
Question: Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy. The orbital speeds of the planets are determined to be 42.8 km/s and 51.7 km/s. the slower planet's orbital period is 6.32 years.
Part A: What is the mass of the star?
Part B: What is the orbital period of the faster planet, in years?
Please show all work and steps to find the orbital period of the faster planet.