How it works
Draw and label the phases of the Moon with this diagram: eight moons in order as they look from the Northern Hemisphere, then the same eight on their orbit round the Earth.
Read the full guide
All phases of the Moon, labeled
In order: new moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, last quarter, waning crescent. While the Moon waxes, the lit part grows from the right. While it wanes, the lit part shrinks toward the left. South of the equator the view is reversed.
Why the shape changes
The Sun always lights half of the Moon. In the second view the lit half of every moon faces the Sun. From Earth we see all of that half at full moon, none of it at new moon and part of it in between. The numbers 1 to 8 are the ring numbers of the first view.
- In the Northern Hemisphere a moon lit on the right is waxing, and a moon lit on the left is waning.
Questions and answers
What are the 8 phases of the moon in order?
New moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, last quarter (also called third quarter) and waning crescent. NASA gives the cycle as about 29.5 days.
What do waxing and waning mean?
Waxing means the lit part we see is growing, from new moon to full moon. Waning means it is shrinking, from full moon back to new moon.
Why is it called a first quarter moon when half is lit?
The name counts the orbit, not the shape. NASA explains that the Moon is a quarter of the way through its monthly journey, and that we see half of its lit half.
How do I draw the phases of the moon?
Draw eight circles. Leave the full moon empty and shade the whole new moon. For the waxing phases shade the left side, less each time. For the waning phases shade the right side, more each time.