Welcome to our site, your link to all that’s astronomical in Orpington, Bromley, Sevenoaks, and the surrounding area. Here you will find details of the Society’s activities. Come and join local enthusiasts discussing and enjoying the night sky!

COVID-19 notice

Due to the current coronavirus pandemic and government regulations, our monthly meetings and observing evenings are cancelled until further notice. Members will be informed of changes to this situation via email on the TOAST list, and on our Forum.

Regular Meetings

Our regular monthly meetings are held at St Francis of Assisi Church Hall in Petts Wood. We meet every month, usually (except in December) on the fourth Wednesday of the month.

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Observing

We hold observing evenings once or twice a month, usually starting at a pub or hall so that the sessions are not weather dependent.

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Special Events

From time to time we arrange dinners, barbecues, picnics, camps, outings and other special events.

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For Members

Members of the Society also get a few other benefits; a quarterly newsletter, an astrophotography gallery, a discussion forum, and more…

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Deep Sky Camp — Fri Nov 13th - Sun Nov 15th, 2020

A regular Deep Sky Camp; please remember to book a place at the camp site and mention that you’re with the OAS party when you do so.

You may have noticed…

There are some sections of the site which only O.A.S. members can read. You need to log in as an O.A.S. member (subscriber) to view them. There’s a log-in link near the top of the page and another in the sidebar. Please use the contact form if you are an O.A.S. member and would like a login ID, or wish to contact the Society.

Charity Registered in England and Wales No. 289661