Located on the grounds of the Trinity School in Carlisle the observatory is home to a 16″ reflecting telescope. Border Astronomical Society run events here and host their regular meetings at the facility to which members of the public are very welcome.
Location events organiser
Border Astronomical Society organises events at this location
Please contact Border Astronomical Society directly with any enquiries relating to visiting this location
Email: [email protected]
Website: Border Astronomical Society
Weather forecast
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30/09/25
15° 9% -
30/09/25
14° 10% -
01/10/25
14° 77% -
01/10/25
14° 53%
Weather forecast for Carlisle (0.4 miles away) updated 30/09/25 at 16:02.
Local light pollution
Trinity School Observatory is estimated to have light pollution levels similar to an urban 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.
Tue 30th Sep
Wed 1st Oct
Thu 2nd Oct
Fri 3rd Oct
Sat 4th Oct
Sun 5th Oct
Mon 6th Oct
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 Trinity School 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.