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!

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 Jul 13th - Sun Jul 15th, 2018

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.