Cardiff Astronomical Society

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 Cardiff University's Physics and Astronomy Department (off Newport Road) and regular night sky (and occasional solar) observing sessions at the Society's own Observatory at Dyffryn Gardens.

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 the section below on getting involved with the Society's activities

Upcoming CAS events

  • Next star party

Please click here

  • Next observing session

Please click here

  • Next talk

Thursday, 5th October 2017 - "Dude ...where's my spacecraft - The Hunt for Apollo 10's Snoopy" by Nick Howes, Aerolite
From 7.30 p.m. till 9.30 p.m. (at the latest) at Cardiff University's School of Physics and Astronomy, Queen's Building, The Parade, Cardiff CF24 3AA venue for talks

  • Stargazing, Brecon

Saturday, 14th October 2017 - Stargazing Evening 6.30 p.m. till 9.30 p.m.
At the Mountain Visitor Centre, Libanus, Brecon Beacons National Park. You are very welcome to attend with your own telescope. Unless you are one of the outreach team with a telescope, charges will apply and you need to book a place via the National Park. For tickets go to


  • Stargazing, Dyffryn Gardens

Saturday, 28th October 2017
Details to follow

  • Stargazing, St. Fagans

Saturday, 18th November 2017
This is being organised by the National Museum of Wales and CAS is only one of the organisations that will be present.
More details as we get them

Recent CAS events

On 15th September 2017, members of the Cardiff Astronomical Society welcomed Professor Jim Al-Khalili OBE who in 2016 received the inaugural Stephen Hawking Medal for science communication. The thought-provoking talk was entitled "The Search for Extra-terrestrial Life" and gave the audience a review of the past work carried out into this topic, an update on current research and acknowledged the debt to Cassini whose mission had been completed that day.

See below Cassini video.

What's up for September 2017

Images captured by Cassini


Would you like to get involved with the Society's activities?

The CAS Committee would like to hear from anyone who would like to give a bit of their time to help with some of the activities we undertake. We are regularly asked to take part in public and outreach events on top of those we instigate ourselves, and these requests are increasing. We are keen to participate in them as we like to spread an interest in astronomy and this is also where we often get new members. These events can be large (e.g. Stargazing Live at Dyffryn Gardens) or small (e.g. helping a cub group get their space badge) or be just the Society's own observing sessions.

We already have a small group of non-Committee members who help on a regular basis and we would be lost without them. We are not asking for a great deal of your time and it doesn't matter if you can help with only one event. If you think you don't have enough experience to help just yet, why not come along to observe what we do so you can see for yourself how you might be able to help? In fact, though, being a beginner at astronomy can be an advantage as it will demonstrate to the public that you don't have to have a degree in astrophysics to enjoy astronomy and Society business!

Here are some of things you could help with

* Become trained on how to use the main telescope at Dyffryn Gardens so that you can help run observing sessions (there are always at least two people running these so you would never be on your own). You can also help in other ways, especially at Star Parties, even if you can't operate the telescope
* Come to a public or outreach event to help set things up, demonstrate the use of a telescope, talk to the public about astronomy or just point people in the right direction. Being friendly and approachable is a great asset at these events
* Give a talk at an event. These will be at novice level sometimes e.g. to child groups like beavers or brownies
* Help the publications officer put together the quarterly newsletter
* Take minutes at Committee meetings

If you are interested in helping or want to find out more, please speak to a member of the Committee or email me at Membership.Secretary@cardiff-astronomical-society.co.uk I will then contact you to find out what help you would like to give and, if you are interested, you will be put on an email list of people we will contact when help is needed. We do understand that people have busy lives and if you are not available when we ask, that would not be a problem.

Katherine Compton (Membership Secretary)

Come and join some of the Society's 300-plus members at one of our meetings or observing sessions.
We promise a warm and friendly welcome for all!!

Join now!

0nly £15.00 per annum means you can make use of our Library.

Select here for FREE downloadable stargazing resources




Introduction to Astronomy 1

Introduction to Astronomy 2

Introduction to Astronomy 3

Introduction to Astronomy 4


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