Lay-by located on top of Bwlch mountain and frequented by local astronomical societies all of whom welcome public participation in their stargazing events.
Weather forecast
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19/04/24
11° 4% -
19/04/24
7° 0% -
20/04/24
5° 0% -
20/04/24
4° 0%
Weather forecast for Treorchy (1.8 miles away) updated 19/04/24 at 12:00.
Local light pollution
Bwlch Mountain Lay-by 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.
Fri 19th Apr
Sat 20th Apr
Sun 21st Apr
Mon 22nd Apr
Tue 23rd Apr
Wed 24th Apr
Thu 25th Apr
Find more dates
If you are planning to visit this location check our dark sky calendar to find out when is best!
CalendarEvents nearby
Stay and gaze nearby
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