Tonight’s Moon
One little look. A new discovery.
Calculated phase right now
Waxing gibbous
93% of the Moon’s face is sunlit
More than half looks bright! Over the next few days, the bright part will grow toward a full Moon.
Calculated for
Not a local visibility or weather forecast.
With a grown-up
One observation challenge
Look with a grown-up when the sky is dark. Draw how much of the Moon looks bright, then predict which part will change by tomorrow.
Come back tomorrow. Keep your drawing and its date and time on paper so you can compare.
Will we see it from home?
This is a phase calculation, not a local sky or weather forecast. Seeing the Moon depends on your location, moonrise and moonset, clouds, and buildings or hills. The Moon can also be up during daylight. We do not request your location or check your weather.
Explore why the Moon changes shape →How this is calculated
Astronomy Engine calculates the Moon’s phase and sunlit fraction for the current time. The labels use small windows around new, quarter and full Moon. The time shown switches to your device’s time zone after the page loads; the calculation refreshes every minute.
Astronomy Engine · Moon phases explained by the U.S. Naval Observatory