Crescent Moon visibility

Find sunset, Moon lag, elongation and altitude for an evening crescent at your location, with a practical viewing window.

Additional city coordinates: GeoNames, CC BY 4.0.
UK default: Europe/London (GMT/BST).

Evening crescent geometry

Phase at viewing time
Last Quarter
Illumination
36.51%
Sunset
2 November 2026 at 16:31 GMT
Moonset
3 November 2026 at 14:18 GMT
After-sunset lag
1306.6 min
Viewing time
3 November 2026 at 02:12 GMT
Moon altitude
19.39°
Sun–Moon separation
73.42°
Lunar age
23.43 days
Geometry screen
Does not meet all three thresholds

The viewing time is sunset plus four-ninths of the Moonset lag. This planner’s geometry screen requires a waxing Moon no more than 25% lit, altitude at least 5°, elongation at least 10° and lag at least 40 minutes. Use a clear, unobstructed western horizon; haze and clouds can hide a crescent even when these thresholds are met.