100 Hours Under One Sky with Anglesey Astronomical Society
Sunday 5th October 2025 from 19:00pm to 21:00pm
Breakwater Country Park
Holyhead, Anglesey, Gwynedd, LL65 1YG
Join the friendly astronomers from the Anglesey Astronomical Society for this free event at Breakwater Country Park in celebration of the 100 Hours Under One Sky global stargazing event.
No need for experience or equipment. The society will have scopes set up for you to use, and will assist you in completing the simple stargazing challenges set as part of the 100 Hours event.
For more details about 100 Hours see https://100hours.online.
Event organiser
Anglesey Astronomical Society is organising this event
Please contact Anglesey Astronomical Society directly for more details regarding this event or, if appropriate, contact the event venue.
Email: [email protected]
Website: Anglesey Astronomical Society
Facebook: Anglesey Astronomical Society
Event booking
For full details on how to attend this event, including how to book, please see the event's official website.
Visit event websiteEvent darkness
The below chart shows if and when the skies will be at their darkest during this event. 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.
Sun 5th Oct
Local light pollution
Breakwater Country Park is estimated to have light pollution levels similar to a suburban 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.
Forthcoming events
Below is a list of events at Breakwater Country Park. View these events on our calendar, add them to your calendar or Google Calendar.
Stay and gaze nearby
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