Question

How long does it take the star and planet to complete one orbit around their center of mass?

Answer 1

i think about 225-250 million years

Step-by-step explanation:

Bottom line: The planets in our solar system orbit (revolve) around the sun, and the sun orbits (revolves) around the center of the Milky Way galaxy. We take about 225-250 million years to revolve once around the galaxy's center. This length of time is called a cosmic year.