Identify Moon Phases

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What is the first quarter moon?

Back

The first quarter moon is the phase where half of the moon is illuminated and visible from Earth, occurring about a week after the new moon.

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What is a full moon?

Back

A full moon is the phase when the entire face of the moon is illuminated by the sun, making it fully visible from Earth.

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What is a new moon?

Back

A new moon is the phase when the moon is between the Earth and the sun, and its illuminated side is facing away from Earth, making it invisible.

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What is a waning gibbous moon?

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A waning gibbous moon is the phase after a full moon when more than half of the moon is illuminated but decreasing in visibility.

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What is a waxing crescent moon?

Back

A waxing crescent moon is the phase shortly after a new moon when a small sliver of the moon begins to be illuminated and is increasing in visibility.

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What are crescent moon phases?

Back

Crescent moon phases include the waxing crescent and waning crescent, where less than half of the moon is illuminated.

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What is a waning crescent moon?

Back

A waning crescent moon is the phase just before a new moon when a small sliver of the moon is still visible and decreasing in illumination.

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What is a waxing gibbous moon?

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A waxing gibbous moon is the phase after the first quarter when more than half of the moon is illuminated and increasing in visibility.

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How many main phases does the moon have?

Back

The moon has four main phases: new moon, first quarter, full moon, and third quarter.

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What is the third quarter moon?

Back

The third quarter moon is the phase where half of the moon is illuminated and visible from Earth, occurring about three weeks after the new moon.