How to Join CUAS or Stay Updated on Its Events

CUAS (Cambridge University Astronomical Society) offers two direct ways to get involved: joining as a member through the website's "Join as Member" option, and subscribing to the society's mailing list for event notifications. If you just want to hear about upcoming events without committing to membership, the mailing list is the lighter option. The society also runs an active Instagram profile and a stargazing WhatsApp group for news, member astrophotography, and informal sky-watching tips.

Joining as a Member

The website lists "Join as Member" as a distinct option in its navigation, separate from the mailing list. Membership is aimed at students and university members, since CUAS describes itself as bringing together "students and university members passionate about the cosmos."

Membership matters if you want to use the society's resources rather than just attend talks. According to the site, members get access to:

• Regular talks from leading astronomers
• Observation nights with historic telescopes
• Equipment training through ObsDemos
• Visual observing and astrophotography equipment available for member use
• Social events throughout the academic year

If your goal is telescope time or equipment access, membership is the relevant step. If you only want event announcements, skip to the mailing list below.

Subscribing to the Mailing List

The site provides a dedicated "Join Mailing List" link, which points to a Cambridge University Sympa subscription page (lists.cam.ac.uk/sympa/subscribe/soc-cuas). Subscribing there is how the society says it notifies people of its events — the homepage explicitly states: "Join our mailing list to be notified of our events."

This is the lowest-commitment way to stay informed. It does not require you to be a member, and the site presents it as the primary notification channel for talks, observing nights, and socials.

Following CUAS on Instagram and WhatsApp

Beyond the mailing list, CUAS maintains two informal channels:

• Instagram — described as an "active Instagram profile" where the society shares upcoming events, member astrophotography, and society news.
• Stargazing WhatsApp group — described as "the perfect place to share what you've spotted in the sky or pick up tips and tricks from the community."

These suit people who want ongoing, conversational updates rather than formal announcements. The WhatsApp group in particular is oriented toward sharing observations and asking questions, not just receiving event notices.

Which Route Fits Your Situation

What to Expect Once You're In

Talks are generally about an hour long, including questions to the speaker, and are followed by casual conversation over refreshments. The site states talks are free to attend for everyone — so even without membership, you can attend a talk to see whether the society fits before joining.

Observing events (ObsNights) are held at the Institute of Astronomy on Madingley Road, Cambridge (CB3 0HA) and are weather permitting. They combine practical astronomy tips with actual observing at the telescopes. ObsDemos at the same location train people to use the telescopes independently.

For newcomers, the site's Freshers' Fair messaging gives a sense of the calendar: a freshers' social (followed by an observing night if weather permits), a Northumberland ObsDemo, speaker talks throughout the term, and Thorrowgood ObsDemos. These are examples of the recurring event types rather than a fixed schedule, so check the mailing list or Instagram for current dates.

Practical Notes

• The mailing list subscription runs through Cambridge University's Sympa system, so you'll be subscribing via a university-hosted page rather than an in-site form.
• The site does not publish membership pricing on the pages reviewed here, so check the "Join as Member" page directly for current terms.
• Observing events depend on weather, so an announced ObsNight is not a guarantee of clear skies.