Crescent Moon visibility
Find sunset, Moon lag, elongation and altitude for an evening crescent at your location, with a practical viewing window.
Evening crescent geometry
- Phase at viewing time
- Waxing Gibbous
- Illumination
- 93.57%
- Sunset
- 23 October 2026 at 17:50 BST
- Moonset
- 24 October 2026 at 05:25 BST
- After-sunset lag
- 695.2 min
- Viewing time
- 23 October 2026 at 22:59 BST
- Moon altitude
- 40.78°
- Sun–Moon separation
- 150.29°
- Lunar age
- 13.26 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.