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 FREE annual event alongside experts from the Museum - who will have their collection of meteorites on display - and also Cardiff University 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

Super Blood Wolf Moon on 21st January 2019!

All stargazers should keep their eyes on the skies near the end of January for the first full Moon of 2019, which is dubbed the Wolf Moon.

This full Moon will not only be a Supermoon (meaning it appears bigger and brighter to the naked eye) but also coincides with a lunar eclipse in the UK. The spectacular sight, which will fall on 21st January, is expected to peak in the UK in the early hours of the morning - which means stargazers will have to set their alarms to be able to catch a glimpse of the phenomenon. Read more about it here

By coincidence, there will be three Supermoons in 2019, occurring at Full Moon on 21st January, 19th February and 21st Match. February's will be the closest but only January's boasts an eclipse!

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, 24th January 2019 at 7.30 p.m. "Galaxies and their Formation" to be given by Julian Onions, Nottingham University. Our 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, 1st or Saturday, 2nd February 2019 from 8.00 p.m. until midnight at Dyffryn Gardens - please click here

>Next Star Party

Friday, 8th February 2019 from 7.30-9.30 p.m. at Dyffryn Gardens - please click here


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