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© Croydon Astronomical Society 2012 Croydon, Surrey, England. Charity Registered in England and Wales No. 251560


Croydon Astronomical Society
est. 1956


Meetings are held at the Royal Russell School, Coombe Lane, Croydon, Surrey CR9 5BX, start at 7:45 pm, and finish at 10 pm.

Our society is a registered charity. We do not charge a mandatory admission or membership fee, instead relying on voluntary donations by the following methods:

We try to structure the meetings to appeal to our members and guests of all levels, from beginner to expert. They normally consist of an introductory talk by one of our members, society news, or an observers section; then a refreshment break followed by the main lecture where the speaker presents a more in-depth talk. A small nominal charge is made for refreshments.


Sept 2018

We are now into our new year of 2018/19 which started on the 31st August and the programme of speakers will be shown below as soon as they are known.


All our regular school meetings are on a Friday evening. The forthcoming dates are below:

---------------------------------  Christmas break 2017  ---------------------------------

The following talks for this year have been confirmed, more to follow:

 • Jan   12 - Wiliam Lumb: Solar Eclipse 2017.

 • Jan   26 - Chris Baker: The trials, tribulations and rewards of remote imaging.

 • Feb      9 - Alan Drummond: Carbon, on Earth and in the stars.

 • Feb  23 - Melanie Davies FRAS: Giants in Space, understanding molecular clouds.

 • Mar      9 - Prof. Carl Murray: Cassini at Saturn, the end of an era.

 • Mar  23 - William Joyce: The Geology of the Moon.

---------------------------------  Easter break 2018  ---------------------------------

 • Apr    13 - Konrad Malin-Smith and Roy Easto: Cepheid Variables and Magnetism.

 • Apr   27 - Konrad Malin-Smith: The Solar Eclipses of the 20th Century.

 • May  11 - AGM: Annual General Meeting.

 • May 25 - Graham G Bryant: Sun, Sea and Smoke.

 • Jun        8 - Tony Roberts: History of the Telescope.

 • Jun  22 - Bernard Winchester: Space and Spirituality.

 • July       6 - James Fradgley: Life in the Universe.

 • July  13 - Andrew Coates: ExoMars.

---------------------------------  Summer break 2018  ---------------------------------

 • Sep    7 - Mark R Smith: Infrared Astronomy Missions.

 • Sep   21 - tba

 • Oct     5 - Mark R Smith: Thermonuclear Fusion in Stars.

 • Oct   19 - Greg Smye-Rumsby - Life in the Universe.

 • Nov        2 - Prof. Garry Hunt: The Voyager Legacy.

 • Nov  16 - tba

 • Nov  30 - Prof. Alan Aylward: Aurorae on Earth and other Planets.

 • Dec  14 - tba

Schedule detail

There are speakers pledged to give talks, and more details of these will appear on this page, Facebook, and on our forum croydonastro as soon as they are determined and also given at the meetings and the regular email notification to members.


There are no meetings from mid-July to early September.

Details of our meetings are also available on the CAS Web Calendar found on the home page. Using this calendar you can set up email or SMS text alerts to remind you of the lecture times.


15th Dec 2017

This will be our regular Christmas meeting. There will be no main talk but members Carl Rich and Pauline Gorman will talk on: Eclipses and Space Toys, and there will be a short video and quiz after an extended break.


24th Nov 2017

We welcome Prof. Steve Miller who will speak to us on the Cassini/Huygens mission.


10th Nov 2017

John Timmins will speak to us on: Optical quality and a comparison of optical systems.

John has over 50 years of observing experience, using most brands and types of telescope available to the amateur astronomer. The talk starts with a brief reminder of key telescope developments over the past 400 years.

Critical measurement of optical performance is discussed, directly related to the functionality of modern commercial amateur and professional telescopes.

Based on this analysis, recommendations follow for all types of optical systems with the aim of improving the performance of the amateur's telescope.


27th Oct 2017

We welcome our own established speaker Konrad Malin-Smith, who will be talking on White Dwarfs, the future of ordinary stars like our Sun. Come and learn what will be its fate and learn many interesting things along the way.

This talk will be preceeded earlier in the meeting by an Extraordinary General Meeting, called because the accounts could not be audited in time for the AGM of 12th May. The agenda is: To approve the 2016/17 accounts.


13th Oct 2017

We welcome Damian Peach who will present to us a talk on High Resolution Astrophotography.

This talk by the world renowned amateur astronomer will focus on high resolution imaging of the planets using amateur telescopes. From advice for beginners to advanced observers it will show you how to get the most from the equipment you own, and his own examples have been shown on television and many magazines.


22nd Sept 2017

Dr Tim Rickard will present to us the bright star Vega.

Fifth brightest star in the night sky, described as the second most studied star after the Sun. First star after the Sun to be photographed and heavily studied in early work on spectroscopy and the determination of astronomical distances. Recently used in setting benchmarks for stellar brightness. Work in the last few years revealed more surprising features about Vega. This talk will outline some of the discoveries, both old and new, and how they helped us understand a little more about the universe in general.


8th Sept 2017

For this first meeting of the 2017-2018 season we start with Ellis Owen on: The birth of stars throughout the Universe.

Molecular clouds are the factories of new stars in our own galaxy and others. In this talk he will discuss their evolution, from initial collapse to the ignition of stars. He will outline their structure, and talk about the magnetic fields which permeate them. He will introduce some of the physical concepts involved in understanding how molecular clouds are supported, and the factors which can affect their evolution - from ultra-high-energy particles to cooling processes. He will discuss how our understanding of star formation and molecular clouds in the nearby Universe can help us to start to understand the formation of stars in the furthest reaches of the cosmos.


13th July 2018

Prof. Andrew Coates spoke to us on the subject titled ExoMars.


6th July 2018

James Fradgley from the Wessex Astronomical Society, spoke to us on the subject of Life in the Universe. Are the aliens really there? Astronomical and evolutionary factors for assessing the probability of there being complex life 'out there'.


22nd June 2018

Member Bernard Winchester presented a talk on: Space and Spirituality. Interviews with astronauts returning from space in articles and news reports often indicate that they feel fundamentally changed by their experiences. So what happens when we "slip the surly bonds of earth to touch the face of God", and why?


8th June 2018

Our Chairman Tony Roberts presented a talk on the History of the Telescope.


25th May 2018

We welcome Graham G Bryant who will speak to us on the subject: Sun, Sea and Smoke, a tale of a wealthy Victorian family of solar observers.


11th MAY 2018

The Annual General Meeting of the society takes place this year on Friday the 11th May. The agenda, appendices and minutes of the AGM last year will be as handouts at the meeting. After the AGM we will include some astronomy, either in the form of news, photographs, short films or answering questions etc. if you would like to share anything, even if just a mention, please do so. There will be further information with other details soon.

As always the AGM portion of this Friday meeting can only be participated by members, whereas guests are welcome as usual during the rest of the meeting.


27th April 2018

We welcome Konrad Malin-Smith who will introduce and present an illustrated compilation on the Solar Eclipses of the 20th Century.


13th April 2018

We welcome Konrad Malin-Smith and Roy Easto who will present to us talks on: Cepheid Variables and Magnetism.


23rd March 2018

We welcome William Joyce who will present to us a talk on: The Geology of the Moon.


9th March 2018

We welcome Prof. Carl Murray who will present to us a talk on: Cassini at Saturn, the end of an era.


23rd Feb 2018

We welcome Melanie Davies FRAS who will present to us a talk on: Giants in Space, understanding molecular clouds.


9th Feb 2018

We welcome member Alan Drummond who will present to us a talk on: Carbon, on earth and in the stars.


26th Jan 2018

We welcome Chris Baker who will present to us a talk on: The trials, tribulations and rewards of remote imaging.


12th Jan 2018

The new year will start with a talk by member Wiliam Lumb on his personal experience of the Solar Eclipse 2017.

Bill Lumb saw the total solar eclipse of 21st august 2017 from Wyoming. On the way he took in Fermilab, the Adler planetarium, Yerkes observatory, and the Homestake mine neutrino detector. He will be sharing his experiences with us.


7th Sept 2018

Mark R Smith: Infrared Astronomy Missions.

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