
COSMOS Observatory
Signal Row, St Martins, Isles of Scilly, TR25 0QN, South West
Join the friendly and experienced team of astronomers at the Community Observatory St Martins on Scilly (COSMOS) and experience the truly wonderful dark skies above the Scilly Isles during this one of the facility’s regular Tuesday evening open nights that occur from April through to October.
Sessions are split into two, each with a maximum number of ten people, prior booking is therefore advised.
Whilst the skies may not get dark through Summer there will still be plenty to see and therefore is very much worth a visit!
Please note that this event has already taken place on 05/04/2022
Event organiser

Community Observatory St Martins on Scilly is organising this event
Please contact Community Observatory St Martins on Scilly directly for more details regarding this event or, if appropriate, contact the event venue.
Email: [email protected]
Website: https://cosmosscilly.co.uk/
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.

Tue 5th Apr
Local light pollution
COSMOS Observatory is estimated to have light pollution levels similar to adark site dark site location based on 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 COSMOS Observatory. View these events on a calendar.