COSMOS Observatory

Signal Row, St Martins, TR25 0QN, South West

Location description

COSMOS -- the Community Observatory St Martins on Scilly -- is a work-in-progress community venture currently raising funds to build an observatory on the Isles of Scilly which will act as a community hub and a gateway to the wonderful dark skies for tourists and locals alike. To find out more please visit their website!

Location event organiser

Community Observatory St Martins on Scilly organises stargazing events at this location.

Astronomical society

Meeting place for local astronomical society, often in a location that enables stargazing and observing.


Location has an observatory that is accessible to the public by prior arrangement or during public events.

Location light pollution

This location is estimated to have light pollution levels similar to a rural setting based on satellite data from CPRE.

Dark site
The above demonstrates the estimated effect of light pollution - graphics created using Stellarium.

When to stargaze at COSMOS Observatory

This location's rural setting means it benefits from dark skies depending on the time of the year and lunar cycle. In the calendar below where you can see stars indicates when the skies will be dark and the best time to stargaze. Yellow areas show the adverse effects of daylight (bold) and moonlight (faded). Hover over a day to see darkness times or click on a date for more information.

Stargazing events at this location

There are no known forthcoming events at this location. Previously there have been 1 event which was on 27th July 2018 organised by Community Observatory St Martins on Scilly.


When to visit

The best time to visit COSMOS Observatory can be found on this dark skies calendar.

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