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Governance and Committee

The society is a Charitable Incorporated Organisation and is registered with the Charity Commission for England and Wales – registration number 1187803.


Our Constitution sets out the overall governance framework of the society.  

The day to day operation of the society is run by its Committee.  The Committee consists of up to ten charity trustees.  The key offices of the Committee are the Chair, Treasurer and Secretary and the other offices are Vice-Chair, Programme Secretary, Outreach Co-ordinator and Membership Secretary.

The Committee has set out detailed rules, policies, information and etiquette in the following documents:

Our Constitution
Rules for visiting the Observatory
Rules for visiting Trinity School
Policy on Child Protection and Protection of Vulnerable Adults
Policy on the use of Sky Laser Pointers (volunteers)
Forum Etiquette
Pre-booked Group visits
Website cookie policy
Data privacy policy (GDPR)

Financial Policies

Laptop and TV at the Observatory (instructions)

M51 Whirlpool Galaxy BB Edge11 noFR MorG2 8300 August 2021.jpg

M51 Whirlpool galaxy

©Tim Coskun 2021

AGM 2024

The CAS AGM will be held at 7:30 pm at Trinity School, Croydon on Thursday 6th June

Here are the draft minutes of the 2023 AGM.

Trustees' Annual Report for the year to 31st March 2024, including Accounts.

Committee nominations


There is a forum hosted on Google Groups ( It is open to anyone who wishes to join and is not managed by Croydon Astronomical Society. However, many of our members do use this group to discuss astronomical matters.

Federation of Astronomical Societies

The FAS produces newsletters about 4 - 6 times per year.  The most recent will appear here.

December 2021

April 2022

June 2022

August 2022

October 2022

December 2022

February 2023

April 2023

June 2023

August 2023

October 2023

December 2023

February 2024

April 2024


From 1959 until 1999 the Croydon Astronomical published its own magazine, Altair.  In the days before Internet this was a valuable resource, full of information related to astronomy.  Much of the content is stll relevant today.

Scanned copies of all the issues (except for issue 2) are available on Dropbox here.

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