Moon Phases

Front

What is the phase of the moon when it is less than half illuminated and decreasing in illumination?

Back

Waning crescent.

Front

What is the phase of the moon when it is less than half illuminated and increasing in illumination?

Back

Waxing crescent.

Front

What is the phase of the moon when it is half illuminated and the illumination is increasing?

Back

First quarter.

Front

What is the phase of the moon when it is half illuminated and the illumination is decreasing?

Back

Third quarter.

Front

What is the phase of the moon when it is more than half illuminated and decreasing in illumination?

Back

Waning gibbous.

Front

What are the eight main phases of the moon?

Back

New moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, third quarter, waning crescent.

Front

What is the term for the moon phase when it is fully illuminated?

Back

Full moon.

Front

What is the term for the moon phase that occurs after a full moon and before a new moon?

Back

Waning phases.

Front

What is the term for the moon phase that occurs after a new moon and before a full moon?

Back

Waxing phases.

Front

How long does it take for the moon to complete one full cycle of phases?

Back

Approximately 29.5 days.