The Society for Popular Astronomy (SPA) teams up with CAS

on Saturday, 29th September 2018 at the University of Cardiff's Queen's Buildings where the Society's fortnightly talks are held - see map. All members of the Society are encouraged to attend. In addition, members of the public who are interested in joining the SPA or CAS will be welcome.

Doors will open at 12.30 p.m. and there will be three talks:

  • Professor Ian Robson (Royal Observatory, Edinburgh): "The Changing Face of Astronomy"
  • Professor Patrick Sutton (University of Cardiff): "The Detection of Gravitational Waves"
  • Dr Megan Argo (University of Central Lancashire): "When Galaxies Collide"

The afternoon session will close by 5.00 p.m.

A New Initiative - Discussions Prior to the Fortnightly Talks

We have started a series of informal meetings at which members can discuss astronomical topics with other members. These sessions are held immediately prior to some of the scheduled fortnightly talks (6.45-7.30 p.m.) and take place at the back of the lecture theatre. If members present want to continue the session after the talk there is a coffee area on the ground floor of the Queen's Buildings and the nearest Wetherspoons pub is just down the road. The first of these sessions was held before the talk on 20th September and was on 'Aligning Your Telescope'. Further details are available here

Stargazing with Dark Sky Wales and the Cardiff Astronomical Society

on Friday, 26th October 2018 from 7.00 p.m. at the Brecon Beacons National Park. Tickets cost £15 and will need to be purchased by any Society members who are not part of the outreach team or helping at the event. More details are available here


The Cardiff Astronomical Society (CAS) is a thriving society located in South East Wales. It has been in existence for over 40 years and is one of the largest amateur astronomical societies in the UK. CAS continues to provide a range of facilities for both Society members and the public at large including a varied programme of talks on Thursday evenings (except in August) at the Physics and Astronomy Department of Cardiff University. In addition, regular night sky (and occasional solar) observing sessions are held at the Society's own Observatory at Dyffryn Gardens.

Our members come from all walks of life and their knowledge of astronomy ranges from complete beginner to advanced. You don't need any specialist knowledge to join us and neither do you need to own a telescope or binoculars. It's also possible to try us out before joining!

More details about the Society and what it does are available here

We are keen to get more Society members on board to assist with the running of CAS events - please see here how you can Help Us


Next Talk

Thursday, 4th October at 7.30 p.m. - "Shakespeare & Astronomy" to be given by Professor Michael R Robinson, Imperial College London. All talks - which start at 7.30 p.m. and finish no later than 9.30 p.m. - are held at the School of Physics and Astronomy, Cardiff University, The Queen's Buildings, The Parade, Cardiff CF24 3AA - please click here

Next Observing Session

Friday, 5th or Saturday, 6th October 2018 - please click here

Next Star Party

Friday, 12th October from 7.30-9.30 p.m. at Dyffryn Gardens - please click here


CAS members have been invited to join the West Essex-based Loughton Astronomical Society (LAS) on Saturday, 10th November 2018 to help celebrate their 50th anniversary. The day will start with displays, demonstrations and an indoor planetarium in the morning, followed by lectures from top astronomers in the afternoon. Further information on the event (including ticket purchase details) can be found on the LAS website here


If you chose to do so, every time you shop online via 'easyfundraising' at one of 3,300 retailers - see opposite - a donation will be made to the Society and it won't cost you a penny extra. It's really simple to get started but please click here for more information including an important tip.

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Come and join some of the Society's 300-plus members at one of our talks or observing events.

We promise a warm and friendly welcome for all.

Only £15.00 per annum also means you can make use of our Library.

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