-this occurs one week after the the full Moon.
- the Moon appears as a shining half-circle on the left side.
-the third quarter means the Moon has completed three-quarters of its orbit around the Earth.
Left side is 50%
Left side is 1-49% visible
-this is the last phase of the Moon before the new moon appears again.
-a waning crescent means the moon decreasing in size on the left side with the thin crescent shape,