Moon Phases Review

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What is a Full Moon?

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A Full Moon is the phase of the moon when it is fully illuminated as seen from Earth, occurring when the Earth is between the sun and the moon.

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What is a First Quarter Moon?

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A First Quarter Moon is the phase of the moon when half of the moon's surface is illuminated, occurring about a week after the New Moon.

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What is a Last Quarter Moon?

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A Last Quarter Moon is the phase of the moon when the opposite half of the moon's surface is illuminated compared to the First Quarter, occurring about three weeks after the New Moon.

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What is a New Moon?

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A New Moon is the phase of the moon when it is not visible from Earth because the illuminated side is facing away from us.

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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's surface is illuminated but decreasing.

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What is a Waxing Gibbous Moon?

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A Waxing Gibbous Moon is the phase before a Full Moon when more than half of the moon's surface is illuminated and increasing.

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What is a Waning Crescent Moon?

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A Waning Crescent Moon is the phase after a Third Quarter Moon when less than half of the moon's surface is illuminated and decreasing.

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What is a Waxing Crescent Moon?

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A Waxing Crescent Moon is the phase after a New Moon when less than half of the moon's surface is illuminated and increasing.

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What is the difference between a gibbous moon and a crescent moon?

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A gibbous moon shows more than half of the bright side of the moon, while a crescent moon shows less than half.

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How many main phases does the moon have?

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The moon has eight main phases: New Moon, Waxing Crescent, First Quarter, Waxing Gibbous, Full Moon, Waning Gibbous, Last Quarter, and Waning Crescent.