Welcome to the CDAA

Welcome to the Clacton and District Astronomical Association web site. We are a small informal group, meeting on the first Thursday of the month. CDAA is the only Astronomical Society serving the Tendring and Colchester districts.

Monthly Meetings

These meetings are held at "Christ Church United Reform Church" Carnarvan Road, Clacton-on-Sea at 7.30 p.m. on the first Thursday of each month (except August). The meetings conclude at 9.45 p.m. Find our new Meeting Hall

In addition to the main events, there are also Monthly 'Night Sky' , 'Astro-News' presentations, Seasonal Constellations and a regular raffle.

We are a friendly bunch of amateurs where new members and visitors are always warmly welcomed. Annual membership is currently £15 adults, £6 juniors (under 18 years of age). This covers admission to all of the monthly meetings

Please note that although visitors are very welcome, they are charged an entry fee of £2.00


As part of the lottery funded 'Outreach' programme, we offer speakers for local clubs, societies and schools. A small fee may be required to cover travel expences etc. Click the 'Contacts' tab to get in touch with an appropriate representative of our society. Outreach activities are outlined by clicking the 'Events' tab.

Find out more...

Our club secretary David Pugh, should be able to answer most queries about the Association itself, whereas I, Bob Leon can answer questions relating to the web site.

2014 Meeting Programme

  • The full meeting programme is listed on the “Events” tab but alternatively is available here to download in the following download options.

    Download Programme Pamphlet

The December 2014 Meeting

4th December 2014

The Annual Quiz

Hosted by Bill Violen

taurusIt is time again for our Annual Quiz. I'm sure that Bill Violen will have been beavering away dreaming up lots of astronomical questions for teams of members to answer. Local Newspaper Report This event is always a bit of fun where we show our prowess (or lack thereof) in our knowledge of the subject.

The November 2014 Meeting

6th November 2014

Gamma Ray Astronomy

by Mike Haynes

taurusIn his talk on gamma ray astronomy our Chairman Mike Haynes will explain what it is, how the high energy gamma radiation is generated and the information that can be revealed by it's study. Local Newspaper Report Gamma rays are the most energetic radiation detected from sources in space. By which processes some of the highest energy ones are generated, are a matter of much discussion amongst astronomers.

The October 2014 Meeting

2nd October 2014

A short


Followed by

Astro Imaging without a Telescope Part I

by David Pugh

taurusDavid would like to show how it is possible to take stunning astro images using an SLR camera. Local Newspaper Report The lack of a telescope should not necessarily hold back any amateur astronomer who would like to take pictures of what they see.

The September 2014 Meeting

4th September 2014

Concepts in Astronomy

Stellar Magnituides

by Bob Leon

taurusThe idea of 'Magnitude' has a long history. Originally devised as a 'measure of a stars brightness as seen by the naked eye', astronomers struggled to make the concept more systematic and precise as observing methods changed and improved. Local Newspaper Report It would seem that there is more to this subject than meets the eye. .

There is no August 2014 Meeting

The July 2014 Meeting

3rd July 2014

Special Guest Speaker

The Galileo Mission to Jupiter

by Jerry Workman

taurusGalileo was a NASA spacecraft mission to Jupiter. Launched on 18 October, 1989, it was designed to study the planet's atmosphere, satellites and surrounding magnetosphere. Local Newspaper Report It was named after the Italian Renaissance scientist Galileo Galilei, who discovered Jupiter's major moons in 1610 with the first astronomical telescope.

The June 2014 Meeting

5th June 2014

Special Guest Speaker

Astronomers in Obscurity

by Mark Hurn

taurusThe astronomers that we know well were often assisted by unsung heroes. Indeed, it was not unknown for promenant astronomers to 'hog' the limelight knowing full well that much of the 'legwork' was carried out by others. Local Newspaper Report Mark will 'shine a light' on those that have been long forgotten.

The May 2014 Meeting

1st May 2014

The Big Bang

by Mike Haynes

taurusThis talk describes the Big Bang theory of the evolution of the Universe and how this theory has developed over the past century Local Newspaper Report

The April 2014 Meeting

3rd April 2014

Special Guest Speaker

Comets, Asteroids and Meteors

Professor Carolin Crawford

taurusOur Solar System doesn't just comprise the Sun, the eight planets and all their moons, the dwarf planets... but it is also home to many hundreds of thousands of comets, asteroids and meteors. Local Newspaper Report We will look at the properties of these lesser-known inhabitants, and what we have learnt from the spacecraft sent to rendezvous with them. Finally we shall look at exactly how much of a hazard they pose - and what (if anything) we might be able to do about it.

The March 2014 Meeting

6th February 2014

The Constellations

by David Pugh

taurusDavid’s talk on “The Constellations” will be a fully illustrated presentation primarily on the origins and history of the modern constellations that we find in the night sky. Local Newspaper Report He also will tell us about some of the so called “lost constellations” plus some interesting facts about some of the current constellations. David’s research for this talk includes several surprising findings.

The February 2014 Meeting

6th February 2014

The Constellation of Taurus

by Bob Leon

taurusIn his talk about the constellation of Taurus, Bob is changing this presentation style to one that includes animated graphics rather than text and bullet points. Local Newspaper Report He admits that this is a bit of an experiment.

The January 2014 Meeting

2nd January 2014

The History of the Solar System

by David Peachey

distant galaxyDavid will be presenting a history of the solar system. Local Newspaper Report Both how it formed and how it evolved over time.