
COSMOS — the Community Observatory St Martins on Scilly — is a work-in-progress community venture. Their observatory on the Isles of Scilly acts as a community hub and a gateway to the wonderful dark skies for tourists and locals alike. The facility is open especially throughout the tourist season and aims to enable visitors to fully appreciate the wonders of the island’s amazing unpolluted dark skies.
Location events organiser

Community Observatory St Martins on Scilly organises events at this location
Please contact Community Observatory St Martins on Scilly directly with any enquiries relating to visiting this location
Email: [email protected]
Website: Community Observatory St Martins on Scilly
Local light pollution
COSMOS Observatory is estimated to have light pollution levels similar to adark site dark site 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.

Sun 20th Apr

Mon 21st Apr

Tue 22nd Apr

Wed 23rd Apr

Thu 24th Apr

Fri 25th Apr

Sat 26th Apr
Find more dates
If you are planning to visit this location check our dark sky calendar to find out when is best!
CalendarForthcoming events
Below is a list of events at COSMOS Observatory. View these events on our calendar, add them to your calendar or Google Calendar.
Stay and gaze nearby
Stay at one of these stargazing-friendly accommodation providers.