Glossary
W
- Waxing Crescent
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This phase occurs when the visible moon is partly but less than one-half illuminated by direct sunlight. The illuminated part is increasing. Learn more on Wikipedia.
- Waxing Gibbous
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This phase occurs when the moon is more than one-half but not fully illuminated by direct sunlight. The illuminated part is increasing. Learn more on Wikipedia.
- Waning Gibbous
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This phase occurs when the moon is partly but more than one-half illuminated by direct sunlight. The illuminated part is decreasing. Learn more on Wikipedia.
- Waning Crescent
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This phase occurs when the moon is partly but less than one-half illuminated by direct sunlight while the illuminated part is decreasing. Learn more on Wikipedia.