Club mission

The Ryerson Astronomical Society (RAS) is the University of Chicago's astronomy club. Our club's purpose is to observe the celestial luminaries in hushed awe in our observation dome on the roof of Ryerson Hall, and to spread the love of astronomy and astrophysics through talks and events.

What we do

The RAS holds a Monday evening talk series during the UChicago academic year, as well as public observation on Wednesday nights. No experience or prior interest is necessary for either event, and we encourage everyone to come and participate. Beyond our weekly events, the RAS conducts many other activities in the astronomy and astrophysics realm, which are open to our members. Periodically, we run trips out to dark sky sites in the vicinity of Chicago for better observing. We also run longer (weekend) trpis to Yerkes Observatory in Wisconsin, where participate in workshops and observe the skies through world-class optics.

If you'd like to learn more about the RAS, you can:

Wednesday observation schedule

Every clear Wednesday night we have public observing at our Ryerson rooftop observatory (all the way up the spiral staircase opposite Ryerson 358). Times, cancellation info, and other announcements are distributed via the listhost. Observation runs from 8:30 till 10:30 unless you hear otherwise, and you can come and go as you please.

Monday talk schedule

We meet to hear presentations on astronomy-related topics from students and faculty every Monday night at 8 PM in Ryerson 358 (the classroom immediately at the top of the main staircase in Ryerson). If you are interested in giving a talk, contact an officer either electronically or during a RAS event. Talks are announced over the listhost.

Get in touch

If you would like to receive announcements and other information about RAS activities, please sign up for our mailing list here.

Officer contacts

If you need to get in touch with a specific officer, please use the contact info found below.


Check out some photos from a dark sky trip to Indiana, by our very own Jack Toole!

And some more photos from our very own Thomas Cortellesi!