Location events organiser
Dark Sky Wales organises events at this location
Please contact Dark Sky Wales directly with any enquiries relating to visiting this location
Email: [email protected]
Website: Dark Sky Wales
Twitter: @AlDarkSkyWales
Facebook: Dark Sky Wales
Weather forecast
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07/12/23
10° 4% -
07/12/23
9° 7% -
08/12/23
9° 64% -
08/12/23
9° 70%
Weather forecast for Castell Henllys (0.3 miles away) updated 06/12/23 at 20:00.
Local light pollution
Castell Henllys Iron Age Fort is estimated to have light pollution levels similar to arural rural location based on the latest data from the VIIRS satellite.
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Urban
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Suburban
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Semi-rural
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Rural
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Dark site
The above demonstrates the estimated effect of light pollution - graphics created using Stellarium.
Best time to visit
The below chart shows when the skies will be at their darkest at this location and therefore the best time to visit. Moonlight is shown in light yellow and the Sun's twilight in light blue. Midnight on the date shown is shown as a white line with sunset to the left and sunrise the next morning to the right. A black background with stars shows the best times for stargazing. See our dark sky calendar for more details.
Thu 7th Dec
Fri 8th Dec
Sat 9th Dec
Sun 10th Dec
Mon 11th Dec
Tue 12th Dec
Wed 13th Dec
Find more dates
If you are planning to visit this location check our dark sky calendar to find out when is best!
CalendarEvents nearby
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