Welcome to The Bristol Astronomical Society (BAS). Based in the South West of the UK, BAS is run by amateur astronomers as a non-profit making educational charity. We are dedicated to exploring and explaining the splendours of the night sky and all aspects of astronomy for both our members and the public. We are open to all, from the most knowledgeable to those merely curious.

With over 120 members and weekly meetings, we are one of the most active Societies in the UK, supporting a variety of interests ranging from observing, imaging, sketching and (of course) the armchair. We have a great 2015-2016 programme of talks with regular guest speakers. The Society has its own Observatory and supports regular outreach across the city. Importantly, we enjoy the company of others as we share these interests.

On this website you will find more details about our events, where we meet, how you can join and news on what we get up to. Feel free to browse around the site and if anything looks interesting and you'd like to know more, then visit our Contact us page. You can even email us your astronomy questions and we'll do our best to find you an answer! For those who are interested we also offer free public viewing at our Failand Observatory on Saturday evenings. Come along (follow the information given on the Observing Tabs) and let us show you the Bristol night sky.

For more information on the society, check out our FAQ page.

To our Members - keep an eye on our News tab and Observing status. Let  us know if you want more links and pages to keep you fully informed on our society activities.

Spend and Raise - Don't forget, if you purchase your online products through our Spend and Raise page, there are now many vendors who will contribute a small amount to the Society through this portal.

Please see our 2015/2016 Programme Page for scheduled Friday evening talks. Our latest public observing events are listed below.

Our Google calendar will return here shortly.

Saturday PUBLIC VIEWING nights at the Failand observatory

Next Observing Session...

Saturday 30th July 2016 (subject to weather conditions)


Check here for status by 8 pm on 30th July.


Star Parties at Tyntesfield House (National Trust)

Next Observing Session...

On dates not yet agreed in October 2016.

In partnership with National Trust - see here for more details on how to attend. This is a National Trust event supported by The BAS. Usually 8-10 telescopes and lots of objects to see including planets, moons, nebulae, clusters and galaxies! Everyone welcome.

> Tyntesfield Star Party booking page.


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Solar Observing for the PUBLIC at Tyntesfield house (National trust)

Next Observing Session...

Planned for sometime in May 2016.


 Monitoring weather forecasts.

Miscellaneous Events

Next Event...

9 May - Transit of Mercury. A free event organised by BAS, Sky-at-Night Magazine and At-Bristol to safely view the sihlouette of the planet Mercury as it passes in front of the sun as seen from Earth. See Society news for more details.


Due to poor weather, this event will NOT be taking place. It can still be observed on-line at  http://live.slooh.com/stadium/live/transit-of-mercury-2016