This period for the earth's moon is 27.322 days
Because the Earth is revolving around the... [DOC] [TLE] Jupiter's moons & Kepler's third law of planetary motion [PAR] In their outward order from Jupiter, these moons are Io, Europa, Ganymede and 
... (318 Earth-masses), take the Moon's orbital period (27.322 days) and divide it
... [DOC] [TLE] Andy Darvill's Space Site - The Moon - Andy Darvill's Science site [PAR] The Moon takes 27 Earth days to complete a full orbit of the Earth and the Moon's 
distance from the Earth ... Rotation period - (days), 27.322, 23.9345, 1.142.