This period for the earth's moon is 27.322 days
By Comparison: 0.00257 x Earth's Distance 
from the Sun Sidereal Orbit Period 0.074803559 Earth Years 27.322 Earth Days
... [DOC] [TLE] Rotation Period and Day Length - Cseligman.com [PAR] Mar 30, 2015 ... Why the rotation period of a planet is not the same as the length of its day, and 
how to calculate the difference.