The Society's change to a Charitable Incorporated Organisation

What does it all mean?


What's up in April 2017

Upcoming CAS Event

Cardiff Astronomy Festival
This FREE biennial event celebrating all things astronomical and space returns on Saturday May 6th 2017 from 10am till 4.30pm at the National Museum, Cardiff. Cardiff Astronomical Society and the National Museum of Wales have arranged a full day of activities, exhibits, shows and help and advice for getting started in this fascinating subject. Suitable for all ages and a warm welcome to all!
• Inflatable planetarium - Techniquest
• 3D films - AstroCymru
• Meteorites - National Museum of Wales and Aerolite Meteorites
• Lunar samples - STFC
• Quizzes
• Stands: Cardiff Astronomical Society, Nippon Optics, Dark Skies Wales, Cardiff University Astronomical Society, Chepstow Books, Faulkes Telescope, Cardiff University.
So if you are interested in astronomy and space, or involved in science education this is the place to be on May 6th!


Cardiff Astronomical Society

Cardiff Astronomical Society (CAS) was founded in July 1975 by Dr. Bob Owens and Dave Powell at an 'out of London' meeting of the British Astronomical Association held at Dyffryn Gardens. The Society continues to develop its activities, recently applying and acquiring CIO (Charitable Incorporated Organisation) status. The Society is managed and guided by a Committee and a Board of Trustees. Membership has grown over the years and now stands at more than 350, making CAS one of the largest amateur astronomical societies in the UK.

A series of talks is held on alternate Thursday evenings from September to July at Cardiff University Physics and Astronomy Department, members attending meetings usually number over 60 and on several occasions during the year over 100. The programme is varied and comprises of lectures, short talks and debates. The aim is to cater for all interests, at whatever level, beginner or advanced. The Society is able to attract the very best speakers from all over the UK and beyond.

In addition, we hold regular observing sessions at our own observatory at Dyffryn Gardens. Members are able to look up at the sky with the help of more experienced observers and use some of the telescopes owned by the Society. For those who need help there is usually a naked eye sky tour to start the night off.

A comprehensive Library is available for use by all members.

The Cardiff Astronomical Society is a thriving society located in South East Wales. Come and join some of the Society's 300+ members at one of our meetings or observing sessions. Cardiff Astronomical Society promises 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



Up and coming events with CAS

May 6th 2017 Cardiff Astronomy Festival.
10 am till 4pm National Museum of Wales, Cathays Park, Cardiff. A showcase of all things astronomical! Lunar samples on display, various trade stands, shows in the Techniquest Planetarium, meteorites for sale, help and advice from members of Cardiff Astronomical Society. FREE

July 30th 2017 10 am till 4pm.
Solar Viewing, Mountain Visitor Centre, Libanus, Brecon Beacons National Park
No fee or booking necessary, just turn up at the Centre during the day N.B. car parking charges will apply, solar viewing will depend on the Sun making an appearance!

October 14th 2017 Stargazing Evening 6:30pm till 9:30pm,
Mountain Visitor Centre, Libanus, Brecon Beacons National Park. A ticketed event, charges will apply, bookings via the National Park, details to follow.

CAS Stargazing Evening

October 28th 2017


Introduction in Astronomy 1

Introduction in Astronomy 2

Introduction in Astronomy 3

Introduction in Astronomy 4


Cardiff Astronomical Society became a Charitable Incorporated Organisation


31st October 2016

In Association with