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Welcome to
Croydon Astronomical Society

Croydon Astronomical Society is based in Croydon, just a few miles south of London. We hold public talks approximately every two weeks during school term time and aim to open our observatory to the public every Saturday evening.   The society was founded in 1956 and operates through the donation of time from its members and donations of money from its members and visitors.   If astronomy is your thing, please consider joining us as a member.  

Obesrvatory closed for public viewing until September.

At this time of year it doesn't get dark until late and during the months of summer it doesn't actually get properly dark at all.  This means that public openings are impractical. 


We will reopen in September for the Saturday evening openings (subject to having clear skies) but we do have some daytime activities planned.  Tentatively, we have pencilled in Saturday 5th July for some solar observing in the early afternoon - again, subject to the weather.  This isn't confirmed yet, so keep an eye on thso website and our Facebook page for updates.  

We hope you get the chance to enjoy the long summer evenings and we will be back when they start to get shorter.

Public opening of the Observatory

We have an observatory near Kenley aerodrome which we aim to open to the public each Saturday evening. Whether we can open depends on the weather (and availability of volunteers).  We can't open if it is wet, windy or cloudy.  As the weather is often quite changeable we sometimes can't make the final decision about whether we can open until mid-afternoon on Saturday.  We post messages here and on our Facebook page.


Although we opened for the unexpected brilliant display of aurora and would again if there was a similar sudden interesting event in the night sky, the Observatory is otherwise closed for our regular Saturday evening until September. Those of you who came up for the aurora will know how late we had to wait for darkness. 

But we are planning at least one solar day, when we look at the Sun with special telescopes which look at the Sun safely and there is going to be a repeat of the Open House event that we were part of last year. Details when confirmed will be published.

Otherwise we look forward to seeing you later in the year, but for those who weren't able to see the aurora there are some photographes opposite which were sent in by members of the public.

Details about visiting are on our website, please glance at them before coming up.

Public talks

The Society holds public talks at Trinity School, Shirley Road, Croydon CR9 7AT.     Further details of the talks programme and location are set out in the Talks tab.

Talks are open to all, there is no charge, but we have a suggested donation of £3 towards society funds. Refreshments priced at 50p are available during the break.

The sun on 10/5/24

Evie Faith Harvey - aged 13

Ian Smith


Ian Smith


Laura Harvey

Photos taken from Observatory on 10/5/24.

Why we're here

Our objectives are to advance education in the science of astronomy and related subjects for the public benefit in Croydon and the surrounding area by:


  • encouraging a popular interest in astronomy and allied subjects;

  • helping beginners, irrespective of their age, to acquire a knowledge of astronomy and allied subjects; and

  • providing facilities for practical work and active participation in astronomical observation.

IC5067 the Pelican wall.jpg

IC 5067 The Pelican Wall

©John Mills 2021

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