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Moon Phases
Term | Definition |
---|---|
Waxing | To increase gradually in size. The illuminated part of the moon is getting bigger. |
Waning | To decrease gradually in size. The illuminated part of the moon is getting smaller. |
Crescent | Less than half of the moon is fully illuminated |
Gibbous | More than half, but less than fully illuminated |
Quarter | One half of the moon (facing Earth) appears to be illuminated. |