The equation for the period ... For a circular orbit, that's the orbital radius. We plug in G (6.67E-11) and M (5.97E24) and T (the length of the sidereal day 23h56m4s) and we get an orbital ...

When we talk about the Moon’s orbital period, we refer to two types of period. There is the sidereal period, which is the time it takes the Moon to move 360 degrees across Earth’s sky, with ...