The moon becomes full every 29.5 days, or 12 to 13 times a year. But because the moon‘s cycle doesn‘t divide evenly into the number of days in our calendar year, the full moon(s) for a given month is shifted about 11 or 12 days per year.
The moon becomes full every 29.5 days, or 12 to 13 times a year. But because the moon‘s cycle doesn‘t divide evenly into the number of days in our calendar year, the full moon(s) for a given month is shifted about 11 or 12 days per year.