LIVE WIDGET
Current Phase
11.8%
Illumination
26.2 days
Moon Age
Digital simulation via AstronomyAPI
Current Moon Phase
View the current phase of the Moon, illumination percentage, and lunar age. Complete guide to lunar cycles and observation.
Moon Phase Calendar
Daily lunar phases for January 2026
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Moon Phases FAQ
What is a Moon Phase?
A moon phase is the shape of the Moon's sunlit portion as viewed from Earth. The principal phases are New Moon, First Quarter, Full Moon, and Last Quarter.
How long is a lunar cycle?
A complete lunar cycle (lunation) takes approximately 29.5 days to complete, moving from New Moon to New Moon.
What determines the Moon's illumination?
The illumination depends on the Moon's position relative to the Sun and Earth. During a Full Moon, the Sun is opposite the Moon, fully illuminating it.
Why do we see phases?
We see phases because the Moon orbits Earth, changing how much of its sunlit side faces us.