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— illuminated — old
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Tonight
Moonrise
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Moonset
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Best viewing window
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Where to look tonight
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Astronomical visibility
Based only on the Moon's height, the Sun's position and the Moon's brightness — not the weather.
Earth view
- Your location
- Sun directly overhead
- Moon directly overhead
- Night side of Earth
- Day/night boundary
24 hours at this location
—- Day
- Twilight
- Night
- Sun highest
- Moon highest
More details
Sun and twilight times
- Sunrise
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- Sunset
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- Morning golden hour ends
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- Evening golden hour begins
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- Civil dawn
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- Civil dusk
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- Nautical dawn
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- Nautical dusk
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- Astronomical dawn
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- Astronomical dusk
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- Solar noon (Sun highest)
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- Day length
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Moon position data
- Highest point today (transit)
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- Altitude / azimuth now
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- Right ascension (from you)
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- Declination (from you)
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- Distance (Earth centre to Moon centre)
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- Phase angle
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- Sun–Moon angle (elongation)
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- Constellation
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- Moon overhead at
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- Sun overhead at
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- Your coordinates
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- Selected time
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Lunar calendar
- Day of the lunar cycle
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- Last new moon
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- Hijri date
- —Calculated (Umm al-Qura). Local announcements based on sighting may differ by a day.
Upcoming phases
What do these terms mean?
- Altitude
- How high the Moon is above the horizon. 0° is the horizon, 90° is straight overhead. A fist held at arm's length covers about 10°.
- Direction (azimuth)
- The compass direction to face: 0° north, 90° east, 180° south, 270° west.
- Illuminated
- How much of the Moon's visible face is lit by the Sun.
- Age
- Time since the last new moon, when the Moon passed between Earth and the Sun.
- Best viewing window
- The part of tonight when the sky is dark (after civil dusk, before civil dawn) and the Moon is above the horizon.
- Transit
- The moment the Moon is highest in the sky.
- Twilight
- Civil, nautical and astronomical dusk are when the Sun is 6°, 12° and 18° below the horizon. The sky is fully dark after astronomical dusk.
- Sun–Moon angle
- The angle between the Sun and Moon as seen from Earth. A young crescent needs roughly 7° or more to be seen at all.
- Overhead point
- The place on Earth where the Sun or Moon is directly overhead. The map markers show these points.
- Right ascension / declination
- The Moon's position on the sky's coordinate grid, as seen from your location.
- Crescent estimate
- A widely used prediction (Yallop's method) of whether a young crescent could be seen after sunset. It is a prediction only: weather, haze and eyesight decide what is actually seen, and it is not a confirmed sighting.