A lunar cycle lasts 29.5 days.
This means that it takes 29.5 days for the Moon to progress from New to
Full, and back again to New.
During her cycle, the Moon moves through four distinct quarters – you can easily recognize them when you look up into the sky at different times.
These phases are:
- New Moon
- First Quarter
- Full Moon
- Third Quarter
The reason these phases look different to us, here on Earth, is that there are varying amounts of sunlight reflected off the Moon’s surface.
New Moon is generally agreed to be the beginning of the cycle.
It’s when astrologically, the Moon and the Sun hold the same degree. And because of this, the Moon is invisible to us, here on Earth. (In fact, her other side – the side facing away from Earth – IS fully illuminated, which is what makes the side we see dark).