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Croydon Astronomical Society
est. 1956

Friday

17th July 2015

For this Friday's meeting we welcome Konrad Malin-Smith, a long standing and Life CAS Member and experienced speaker, who will be presenting a talk entitled: The Nature of Light and Time.
In two parts - with the break at 9 pm - Konrad will use the first part of the talk to introduce the subject and then go into more interesting detail in the 2nd half.

The shorter period in between will show some images from members and also highlights of the New Horizons mission to Pluto, so far.

Friday

3rd July 2015

For tonight's Friday's meeting we welcome Keith Brackenborough, a long standing and Life CAS Member and experienced speaker, who will be presenting a talk entitled: Herstmonceux: the Rise and fall of an Observatory.
A personal account from the people who work there, the history and politics of how it started, closed, and what happened to largest telescope in UK.
Keith ran the first Croydon Convention in 1977; 400 people from the south east and organising the very qualified speakers. It's now common to have these conventions around the country

Immediately after the introduction there will be some astronomy news, events and (members') observations.

Friday

19th June 2015

For this Friday's meeting we welcome Tony Sizer, a long standing CAS member, experienced speaker and tutor in astronomy courses and planetarium lecturer at the Royal Observatory at Greenwich, who will be presenting a talk entitled: Ice Worlds. Further details intentionally withheld, we're going to have to be there to know more.

Immediately after the introduction there will be an EGM to complete the audit of the society accounts, and then a shorter version of some astronomy news, events and (members') observations.

Friday

5th June 2015

For this Friday's meeting we welcome Roy Easto, a long standing CAS member and speaker, who will be presenting a talk entitled: Genesis of the Moon. Why does the Moon have ‘seas’ on just the near side? Could volcanoes still be active on the Moon? Since the manned landings of Apollo many robotic probes have been sent to the Moon to measure it in almost every conceivable way. This talk explores the knowledge we have gained from the probes sent to the Moon and looks forward to answering the unanswered questions.

After the introduction and before the break there will be a shorter/beginners' talk and some astronomy news, event and observations.

Friday

22nd May 2015

For this Friday's meeting we welcome Dr Peter Grimley who will be commemorating the 25th anniversary of the Hubble Space Telescope, which has contributed to many of the most significant advances in astronomy over the last 25 years, as well as memorable images published in the public media. This talk will look at the why, what and how of Hubble's success, and look ahead to the next generation of telescopes."

After the introduction and before the break there will be a shorter talk by Graham Cluer on Auroras, illustrated with photographs taken during his recent visit to Iceland in March this year.

Friday

8th May 2015

The Annual General Meeting of the society takes place this year on Friday the 8th 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.

Friday

24th April 2015

We welcome Prof. Serena Viti of UCL who will be speaking to us on Astrochemistry in Galaxies. Chemistry in galaxies can be complex and well-developed. Molecular emissions can be used to explore the physical conditions and the likely evolutionary status of our own and far away galaxies, in particular Starburst, Active Galactic Nuclei and Ultra-Luminous Infra-Red Galaxies.

After the introduction and before the break there will be a shorter talk by Colin del Strother on the eclipse of 1715 in London; the last one 300 years ago almost to the day.

Friday

10th April 2015

This Friday we have our Annual Exhibition meeting, where you are invited to share any images or drawings taken in the last year (or not shown before), and equipment you use, such as telescopes, binoculars, cameras, adapters etc.

Our society astronomer, John Berman, will be showing his images from Kenley, displayed through the projector and in print around the room. There will be displays from other people, accompanied by explanations of how they were taken, and will show that the techniques do not necessarily need be advanced to get satisfactory and pleasing results. This will be a good time to enquire on telescopes and observing techniques etc. Please submit any images you like to share; all are welcome.

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There are no meetings in August.


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.

Friday

18th Dec 2015

Tonight Friday 18th Dec is our Christmas and last meeting of 2015, and as every Christmas meeting the format is different from the usual.

It's informal and the main feature, after the break, will be a fun event with various television style quiz programmes and based on the subject of astronomy, with rounds and questions. There will be some audience participation and Roy Easto will be chairing the quiz and asking the questions, which will also be illustrated on the screen with a combination of photos, videos and music.

As in previous meetings we ask members to bring some festive food and drink to share amongst ourselves, and the break will be longer than usual. After the break the food and drink will be moved into the room during the quiz.

Before the refreshment break there will be some astronomy news, events and observations, some from our own members.

Friday

4th Dec 2015

This Friday we welcome Paul Coleman, who will be talking on the subject of Return to the Auroras around Yellowknife. Auroras are a prime vista of nature, an astronomical feature in our own atmosphere, and Paul uses quality cameras and very good techniques to take excellent images, all with explanations and more.

PLEASE NOTE that on this occasion this main talk will start at 8 pm, immediately following the introduction and before the refreshment break.

After the refreshment break there will be some astronomy news, events and observations, some from our own members.

Friday

20th Nov 2015

This Friday we welcome again an experienced speaker, Matthew Hepburn, who will be talking on the subject of Nucleosynthesis in the light of collective empirical study of nuclei. His talk will specifically explain the abundance of elements that are produced as a result of Nucleosynthesis inside large stars and their resultant supernovae.

This will be immediately following the break.

Immediately after the introduction there will be some astronomy news, events and observations, some from our own members.

Friday

6th Nov 2015

For this Friday's meeting the main talk will be by William Bottaci, on Basic Astronomical Imaging; a handbook styled talk from experience, from first steps to showing what can be achieved without too much trouble or expense. Explanations will include pitfalls and simple steps required to avoid them.

Along the way there will be some armchair astronomy as we visit some of the objects imaged.

The shorter talk before the break will be by the life-long and experienced member Roy Easto, who will be speaking on Sextants; an instrument from the early days that is still in use today.

Friday

23rd Oct 2015

For this Friday's meeting we welcome award winning astronomer Jeremy Workman who will present the main talk ‘Curiosity on Mars’. Since landing over 3 years ago this rover has exceeded its operational lifetime and has made some remarkable recent discoveries.

Jeremy Workman is an astronomical society chairman and winner of the Eric Zucker Award from the FAS 2009 for his work and outstanding contribution to the popularisation of astronomy.

Immediately after the introduction there will be some astronomy news, events and observations, some from our own members.

Friday

9th Oct 2015

For this Friday's meeting we welcome Alan Drummond, a long standing CAS Member and experienced observer, who will be presenting a talk entitled 'Globular Clusters'. These comprise of the galaxy's oldest stars, and whilst their true origins are still not fully understood there have been some recent developments.

Immediately after the introduction there will be some astronomy news, events and observations, some from our own members.

Friday

25th Sept 2015

We welcome for the first time Dr Licia Ray of the Mullard Space Science Laboratory, MSSL, with a talk on 'Auroras Abound: Comparing the Northern Lights of Earth, Jupiter and Saturn'.
Other planets of the solar system that have magnetic fields have exhibited their own auroras, and we discover the similarities and differences of these phenomena.

Immediately after the introduction there will be some astronomy news, events and observations, some from our own members.

Friday

11th Sept 2015

We start our new season at the Royal Russell School with the return of the energetic and very illustrative speaker Greg Smye-Rumsby of 'Astronomy Now' magazine and the Royal Observatory, who returns to speak on a recently updated subject of 'Pluto'.

Following NASA's New Horizons spacecraft encounter with Pluto last July we suddenly have a lot more information and accompanying images of this once outlying planet.

Immediately after the introduction the short talk will be on Planetary Nebulae, the end state of stars similar to our Sun.

Friday

20th Mar 2015

For this Friday's meeting we continue with the series of short talks, all on a subject beginning with the same letter of the alphabet, and from 2003 we have now arrived at the letter W. We have:

  White Dwarfs - by James Robertson

  White Spot on Saturn - by Paul Harper

  Wilson and WMap - by Roy Easto

  Wolf-Rayet stars - William Bottaci

There may be time for an illustrated mix of recent astronomical news, events, observations, particularly if we have good weather tomorrow morning for the partial solar eclipse.

Friday

6th Mar 2015

For this Friday’s meeting we welcome Prof. Alan Aylward of UCL who will be speaking to us on Detecting Exoplanets, planets around other stars. Before 1995 no-one knew if our Sun was unique in having planets. Since that first detection of Peg-51b the discovery of exoplanets have come thick and fast. Approaching 2,000 confirmed planets are known, and the field has moved beyond pure detection to characterisation - properties of the exoplanets. Even in the largest telescope each planet is no more than one pixel, so how much can we say about them? You may be surprised just how much.

Friday

20th Feb 2015

For this Friday's meeting we welcome Graham Cluer, who will speak on Telescopes and Imaging. Graham will explain some optical theory and we get a chance to demonstrate with lenses to see how the theory translates into practice. That will lead on to the various ways of taking photographs through telescopes - Prime Focus, Eyepiece Projection, and simply placing the camera at the eyepiece end, investigating the problems and advantages of each method. See what can be done with less time and equipment than you might expect.

After the introduction the short/beginner's talk is by Tony Angel on 'Various comet passes, including Lovell'.

Friday

6th Feb 2015

For this Friday's meeting we welcome once again Prof. Steve Miller from University College London (UCL) whose talk is entitled: The public impact of impacts: the role of the media in the 'death of the dinosaurs' controversy.

After the introduction there will be an illustrated mix of recent astronomical news, events, observations and items of topical interest, particularly recent amateur/members images.

Friday

23rd Jan 2015

For this Friday's meeting we welcome for the first time Dr Mikako Matsuura whose talk is entitled: Herschel Space Observatory and ALMA explore deep into space. She will explain how using state-of-the-art instruments, the Herschel Space Observatory and the Atacama Large Millimeter/submillimeter Array (ALMA) can explore the regions of the universe that contain cold dust and molecules. These telescopes use wavelengths which have been little explored, and are unveiling unseen pictures of stars, star-formation and galaxies, which other telescopes have never caught before.

After the introduction there will be an illustrated mix of recent astronomical news, events, observations and items of topical interest, particularly recent amateur/members’ images.

Friday

9th Jan 2015

For this Friday's meeting the main talk by William Bottaci will be on Remarkable Stars. We know there are a wide range of sizes, mass and surface temperatures but some stars, through various combinations or other attributes, stand out as particularly interesting.

The shorter talk by Alan Drummond will be on the recent European Space Agency's Philae lander, from the Rosetta spacecraft, landing on Comet 67P/Churyumov-Gerasimenko.

Meetings, past year of 2015.  Current year

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.

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