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Public talks

The Society holds public talks about astronomy at Trinity School, Croydon CR9 7AT approximately every other Thursday during school term time. Our talks are open to all. 


The talks are usually held in the Sandison Room – see Talks location below for directions.  Very occasionally the school may ask us to use another room and, if this is the case, details of the alternative room will be posted on this page. 


Talks start at 7.30pm sharp and usually finish by 9pm including a break for refreshments. There is no charge but we suggest a donation of £3 per person towards society funds (larger donations are, of course, very welcome).  Refreshments (tea & coffee) are available for a nominal charge of 50p.  We accept cash and contactless (minimum £1) payments

2023 Talks programme

Welcome to our Autumn 2023 Programme.

23rd November

We are delighted to have Dr.Paul Murdin speaking to us tonight on "Black Holes"

Dr.Murdin was a member in the late 50's and is an old boy of Trinity School.

He also was the first astronomer to observationally discover a Black Hole, so is more than qualified to speak on the subject.

7th December

A practical night! Graham Cluer will guide us through the process of making a solargraph device.

Using an empty tin, a pin hole and a sheet of photographic paper you can record how much sunlight you get during the year. 

Draft dates for 2024

Spring term.

January 11th and 25th,

February 8th and 22nd,

March 7th and 21st.


Summer term.

April 18th,

May 2nd and 16th,

June 6th and 20th,

July 4th.

Talks location

Trinity School, Shirley Road, Croydon CR9 7AT

Trinity map 2.png

If driving, enter the school from the Addiscombe Road A232 and follow the one way road, turning right at the mini roundabout by the exit onto Shirley Road.

Parking is in the staff car park on the left opposite the main entrance to the school.

The Sandison Room is just behind reception.

Directions to our meeting room from the Addiscombe Road entrance.


Enter via Addiscombe Road.  The gates should be open but members will be sent the entry code by email.


You pass the "Boys Entrance" on the right.  Keep going to the mini roundabout.


Drive in and soon turn left, signposted "Trinity School Reception"


At the mini roundabout the exit is on the left.  Don't go left, go right at the roundabout.


Keep going towards "Exit".


Drive on to the sign for Reception (by the flagpole).  Parking is in the staff car park to the left, reception is on the right.


Walk up the steps to Reception.

Directions by bus

These buses stop outside and all of them connect with East Croydon Railway Station and tram stop.


119: Croydon Airport to Bromley

194: West Croydon to Lower Sydenham

198: Shrublands to Thornton Heath

466: Caterham-on-the-Hill to Addington Village


If coming from East Croydon get off at stop F (Trinity School).  If coming the other way than you need stop P.


Trinity School is approximately 10 minutes on foot from the Sandilands tram stop.

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