Dyffryn Observatory Public Star Party
Friday 3rd October 2025 from 19:30pm to 21:30pm
Dyffryn Observatory
Dyffryn Gardens, St Nicholas, South Glamorgan, CF5 6SU
Cardiff Astronomical Society hosts regular Star Parties at our Observatory in the grounds of Dyffryn Gardens. These events are designed for beginners of all ages who are interested in exploring the night sky.
Each evening begins with a general tour of the stars and constellations, focusing on the Moon, the brighter planets, and some of the more prominent Messier objects.
Visitors can enjoy short talks and presentations, demonstrations of the night sky in real time when weather permits or virtually through Stellarium, and an introduction to the different types of telescopes.
Star Parties offer an enjoyable and informal way to start learning your way around the night sky. If you would like to attend, please email [email protected], remembering to include the number of people in your group.
Event organiser
Cardiff Astronomical Society is organising this event
Please contact Cardiff Astronomical Society directly for more details regarding this event or, if appropriate, contact the event venue.
Email: [email protected]
Website: Cardiff Astronomical Society
Twitter: @cardiffas
Facebook: Cardiff Astronomical Society
Event booking
Event 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.
Fri 3rd Oct
Local light pollution
Dyffryn Observatory is estimated to have light pollution levels similar to a semi-rural 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.
Forthcoming events
Below is a list of events at Dyffryn 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.