Star Attractions Day to be held at the National Museum Cardiff, Cathays Park, from 10.00 a.m. to 4.00 p.m. on Saturday, 19th January 2019

CAS will again be involved with this very popular annual event alongside experts from the Museum and also Cardiff University - who will have their collection of meteorites on display - as well as representatives of AstroCymru, our colleagues from other Welsh astronomical societies and other astronomical organisations including Faulkes Telescope Project, who are likely to have their state-of-the-art Virtual Reality equipment available for use.

There will be two entertaining talks by the Society's Phill Wallace on:

  • "The Reality of Star Trek" - Phill will take you on a galaxy-spanning journey as he explores just how "real" Star Trek might be, from the warp drive to the transporter to the alien worlds and the species. Can anything in the franchise pass the test of "what's plausible?"
  • "Understanding the Impossible: the Science of Doctor Who" - Phill will once more dive into an impossible universe as he attempts to see how much of the Doctor 's world can actually be explained by our knowledge. Time travel, bigger on the inside, two hearts and regeneration are just some of the themes to be tackled.

Further details on this event are available here

Gift Aid

CAS is now registered for Gift Aid. This means that, if you are a UK taxpayer, we can claim back the standard rate tax on subscriptions (and on any donations) paid since the Society became a registered charity on 31st October 2016 (giving an effective 25% boost to the amount the Society has received).

However, in order to reclaim these monies from HMRC, we need all members who pay tax to complete and sign a Gift Aid Declaration form.

Please note that if you have paid your subscriptions by PayPal, you will have already been asked if you would consent to those subscriptions being Gift Aided - but we still need a completed and signed Gift Aid Declaration form in order for us to reclaim the tax paid as Gift Aid.

If you are eligible, please take a form (see the button to the right) and then complete & sign it and pass it to us at one of the fortnightly talks or send it to CAS by post or email (as shown at the bottom of the form).

Thank you for your help.

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 most recent session was held in advance of the talk on 18th October 2018 and was on 'Helping (in any way members can) at activities such as Star Parties and Public Events'. It followed the inaugural session held on 20th September 2018 which was on 'Aligning Your Telescope'.

Further 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, 10th January 2019 at 7.30 p.m. "Introduction to Meteorites" to be given by Dr Jana Horák, National Museum of Wales. All talks - which finish no later than 9.30 p.m. - are usually held in Room T2.09 (the Trevithick Lecture Theatre) 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, 4th or Saturday, 5th January 2019 from 8.00 p.m. until midnight at Dyffryn Gardens - please click here

>Next Star Party

Friday, 4th January 2019 from 7.30-9.30 p.m. at Dyffryn Gardens - please click here

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Join the Society

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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