The Croydon Astronomical Society is registered as a Charitable Incorporated Organisation - 1187803

Croydon Astronomical Society

There is no charge for the talks but there is a suggested donation of £3 per person to help cover the costs of venue hire and the speaker (larger donations are of course very welcome).  Refreshments are available for a nominal charge.


How to get to our Friday talks at Trinity School.


Trinity is a large school situated in Shirley Park, Croydon.  Most local people will be able to direct you to the "Trinity Roundabout"


See it on Google Maps.


The main entrance to Trinity is off Addiscombe Road by Shirley Park Golf Club. Enter postcode CR9 7AT in your SatNav.


Due to the one way system you will exit the site onto Shirley Road roundabout.


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

The Society holds public talks at our new venue - Trinity School, Shirley Road, Shirley Park, Croydon CR9 7AT. We meet in the Sandison Room. These are held every other Friday during school term time and are open to the public. We plan to re-start our talks in September.  Click the button on the right for our programme.


Please follow these rules when visiting the school.

Our talks programme.

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



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



Keep going towards "Exit".



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

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

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.

How to find the Sandison  room.


You need to follow signs to Reception.


The room is obvious from there.


See below for detailed directions.


Walk up the steps to Reception.