COSMOS Observatory Open Evening

Tuesday 14th January 2020 from 20:00pm to 22:00pm

COSMOS Observatory

Signal Row, St Martins, 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 the facility's regular Tuesday evening open nights.

Note that the event times change throughout the course of the year starting later during Summer months and earlier during the Winter, this depending on when the skies get dark. There's an entrance fee payable on the door with all proceeds going towards the charity.

During the tourist season there are daily boats to St. Martin's from St. Mary's with a special evening service to coincide with the Observatory opening (subject to demand).

- Event will involve stargazing and observing the skies through telescopes weather permitting

Corona virus

Please be aware that due to the Coronavirus it is likely that this event has been cancelled or postponed. If you are considering attending this event please double check with the event organiser directly to confirm. If this event is indeed affected the organisers will no doubt need your support in the future -- please do consider attending an event of theirs when possible! Thank you!


This event is being organised by Community Observatory St Martins on Scilly who should be contacted if you have any queries. We highly recommend you confirm this event is indeed going ahead before travelling. If you do attend it would be fantastic if you could let the organiser know you found them via Go Stargazing!


Please contact Community Observatory St Martins on Scilly directly for more details regarding this event or, if appropriate, contact the event venue.

Go to the organiser's web page for this event

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.

Location darkness on Tuesday 14th January 2020

The below graphic shows if and when it will be dark at COSMOS Observatory on the evening of this event. Yellow areas show when the skies are not dark due to daylight (bold yellow) and moonlight (faded yellow). Click on the image for an explanation on how darkness is determined.

Other events at COSMOS Observatory

See all 31 forthcoming events at this location.

Event Location

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