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What is the first quarter moon?

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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?

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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?

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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?

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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?

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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?

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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?

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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?

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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.