Join Chesterfield Astronomical Society for an amazing stargazing experience!

Open every Friday from 8pm, our main telescope, and the smaller scopes outside provide alternative opportunities for viewing the planets, moon and stars. Find Out More

Click on this link to open Amazon in a new page. Any orders you place on Amazon will then generate a small payment to CAS to help us maintain the observatory. Thank you for your support!

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The Chesterfield Barnett Observatory

Starazing at the Chesterfield Observatory
Our observatory is open every Friday from 8pm onwards until the last person leaves. We always give visitors a warm welcome so if you’d like to join us, please feel free to do so. You don’t need to book your visit, just pop over to see us and we’ll show you around and make sure you get the opportunity to do some stargazing too if the weather is with us. We rely on the generosity of the local community to keep the observatory open so please can you place a small donation of £2 in our visitors’ pot when you visit.

Friday night is also members’ night and whilst we are always delighted to receive visitors please be aware that sometimes our members could be busy with their hobby which can require a high level of concentration so might appreciate it if you avoid interrupting them when using or setting up a telescope. Thanks for your understanding.

If you’d like to learn more about the observatory, click here

We very much hope that you will come and visit us on a Friday evening when we will make sure you have an astronomically good time 🙂


Visit the Chesterfield Observatory for an amazing astronomical experience
Discover where the ISS is and when it will next be visible from where you are
Are you thinking of organising a group visit? Click here to find out more!
View our gallery for awesome photos taken by our members


  • Talks

    We’ve added a new menu item from the ‘About Us’ menu that takes you to a schedule of talks. Click on the date of a talk to see details. Cheers, Mark.

  • User IDs for this Site

    10th March 2018 At the last committee meeting a decision was made that all non-essential user IDs on this website would be disabled. The government has brought in new rules regarding the visibility, use and management of personal data and […]

Moon Phase

Waxing Gibbous Moon
Waxing Gibbous Moon

The moon is currently in Aries
The moon is 12 days old

Upcoming Events

6:30 pm Observatory children’s visit @ Observatory
Observatory children’s visit @ Observatory
Nov 20 @ 6:30 pm – 7:45 pm
1st Hathersage Scouts (Beavers) 20-24 Beavers (under 8 yrs) + 5 helpers 6:30 start GJL to give talk
8:00 pm Observatory Open – Click for Info
Observatory Open – Click for Info
Nov 23 @ 8:00 pm – 11:30 pm
Our observatory is open every Friday from 8pm onwards until the last person leaves. We always give visitors a warm welcome so if you’d like to join us, please feel free to do so. You[...]
8:15 pm Talk at the Observatory – Origin... @ Observatory
Talk at the Observatory – Origin... @ Observatory
Nov 23 @ 8:15 pm – 9:15 pm
The Origin and Development of the Universe – should we be surprised we are here? A talk by Dr Chris Booth
6:30 pm Observatory visit @ Observatory
Observatory visit @ Observatory
Nov 26 @ 6:30 pm – 8:30 pm
Chesterfield 18th Cubs 20 Cubs 8-11 years + 3 helpers 6:30 start Mark giving talk

Amazon Purchases

If you are thinking of making a purchase from Amazon, then please click the banner, The Society will, without any extra cost to you whatsoever, receive a commission on your purchase. The Society has to date raised a fantastic £626.10 as a result of purchases through our link. Thank you to everyone who supports us in this way. Your kind and continued support is really appreciated.