Welcome to the Canterbury Astronomical Society website. Thanks for stopping by at our little corner of the universe. We are a friendly, like minded, bunch of astronomers with a tendency for spending late nights out under the stars.

Membership of CAS comes with a range of benefits including access to our well equipped observatory in West Melton, training and education and the chance to rub shoulders with some great astronomical minds.

Our society has strong links to education with an active kids training programme and public open night calendar every year.  Feel free to register for a free account on the site and browse around.

To book a place for the Friday Public Open Nights please go to Eventbrite – Canterbury Astronomical Society

We are involved in KidsFest 2024, to book please go to Eventbrite – CAS KidsFest 2024.

Latest Sky Conditions at West Melton Observatory

The Graeme Kershaw All Sky Camera is located at the RF Joyce Observatory in West Melton. The static image will update every time this page is refreshed. At night you will see stars, the moon and planets as well as an occasional meteor.

For a live view page click the image which will launch a new window with camera controls on the left hand side of the page.

This camera was made possible by the generous donation from the Kershaw Family and is a tribute to Graeme’s tireless work in the field of Astronomy.

As a CAS member you are entitled to attend all of our events throughout the year free of charge.  Public open nights, our CAStronauts introduction programme, the highly entertaining nights of Kidsfest, access to practical astronomy sessions with plenty of time under the stars, Star BBQ’s and our informative lectures – all included in our membership packages.

Monthly members meeting are held at the University of Canterbury, usually with an informative guest speaker. Its a great chance to meet other members, discuss astronomy and plan your next project.

You can also attend our members nights at the observatory where we get time for training and socialising under the skies. As a paid member you get access to the observatory, training and our range of fixed and portable telescopes.

We also host a number of CAS social events such as a summer and mid winter BBQ and of course you get unlimited access to the observatory (including through the summer) and training so you can loose those L plates and become a skilled astronomer.

How To Join CAS?

For more information and access to the CAS Store simply register an account – it’s quick and simple to do!

Once we have approved your account you can find the CAS Store under the Your Account menu. 

Check out our  range of membership packages in the CAS Store to find one that’s suitable for you. Our range of memberships start from just $35.

A Family Membership is a great gift which is excellent value for a whole year of education and entertainment for all the family.

If you encounter issues with upgrading your membership, please email membership@cas.org.nz

Our Winter Program is up and running. So join today and get instant membership and access to our full summer programe at no extra cost!

Thanks to our sponsors for their generous support