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New Moon - The Moon's unilluminated side
is facing the Earth. The Moon is not visible (except during a solar eclipse). |

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Waxing Crescent - The Moon appears to
be partly but less than one-half illuminated by direct sunlight. The fraction of the Moon's disk that is illuminated is increasing. |

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First Quarter - One-half of the Moon appears
to be illuminated by direct sunlight. The fraction of the Moon's disk that is illuminated is increasing. |

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Waxing Gibbous - The Moon appears to be
more than one-half but not fully illuminated by direct sunlight. The fraction of the Moon's disk that is illuminated is increasing. |

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Full Moon - The Moon's illuminated side
is facing the Earth. The Moon appears to be completely illuminated by direct sunlight. |

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Waning Gibbous - The Moon appears to be
more than one-half but not fully illuminated by direct sunlight. The fraction of the Moon's disk that is illuminated is decreasing. |

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Last Quarter - One-half of the Moon appears
to be illuminated by direct sunlight. The fraction of the Moon's disk that is illuminated is decreasing. |

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Waning Crescent - The Moon appears to
be partly but less than one-half illuminated by direct sunlight. The fraction of the Moon's disk that is illuminated is decreasing. |