Moon Phase Calculator
Calculate the moon phase for any given date.
Frequently Asked Questions
What are the moon phases?
The Moon has 8 main phases: New Moon, Waxing Crescent, First Quarter, Waxing Gibbous, Full Moon, Waning Gibbous, Last Quarter, and Waning Crescent. A full cycle takes approximately 29.5 days.
How accurate is this calculation?
This calculation is an approximation based on astronomical formulas and generally provides accurate results within 1-2 days. For precise astronomy data, it is recommended to use observatory sources.
What does moon age mean?
Moon age is the number of days since the last New Moon. 0 days corresponds to a New Moon, approximately 14.8 days to a Full Moon, and 29.5 days to the next New Moon.
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