Welcome to the O.A.S. website

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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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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OAS Otford Picnic — Sun Aug 27th, 2017

There is going to be an OAS picnic on Sunday, 27th August, on the field behind the Otford Village Memorial Hall, Otford. Bring your own food and drinks, and perhaps chairs. If it’s going to be sunny, then a small telescope may be fun to observe the sunspots, if any if anybody cares to bring […]


Deep Sky Camp — Sat Aug 26th - Mon Aug 28th, 2017

An extra Deep Sky Camp. Please Contact Carole (via PM on the Forum, or at a regular meeting) for details as this needs to be a group booking in advance. Please note that


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.