Months and the Moon Cycle

Months were originally based on the moon cycle — new moon to new moon — i.e. 29.53 days. This cycle is due to the moon rising in our East and setting in our West 40 to 60 minutes later each day (an average of 50 minutes) as it orbits from West to East. Thus for part of the month it is totally bright at night (full moon), and for part of the month it is totally dark (New Moon). Click here to see its timeline for our current month in Brisbane, as an example.


Click here for more on "sidereal rotation" and apparent retrograde motion with regard to the moon, the planets and the stars.

Click here for the gravitational impact of sun and moon creating tides on the earth.

Click here for a study on the relationship between the moon's phases and rainfall.

**End of notes