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Welcome to the Champaign-Urbana Astronomical Society (CUAS) web site.

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4 foot by 6 foot Apollo 11 painting by Scott and Leann Glick for July 4th parade float commemorating the 50th anniversary of the moon landing.  Currently on display inside our observatory front door.

Dave Leake saw this rainbow in early October.  Observatory sunrise 12-26-2019 by Mike Connron


Jim Wehmer just finished “refurbishing” one of our two Odyessy 8 Dobs by Coulter Optical to be used by the kiddies at Family Skywatch and Open Houses.  They can try to find objects in the sky all by themselves (under supervision).  The mirrors really cleaned up nicely.


Upcoming Family and Public Skywatches and Other Public Events, 2019

Saturday, March 28

 CUAS Family Skywatch and Open House
WhenSat, March 28, 7pm – 9pm
WhereChampaign Urbana Astronomical Society Observatory, County Rd 700 E, Champaign, IL 61822, USA (map)
DescriptionCome and have a look at magnificent astronomical objects through our many telescopes. We recently completed a new observatory building to accommodate our ever increasing number of guests. Use our newly refurbished primary dome instrument, a 16 primary diameter mirror Cassegrain telescope. Open to the public! This is an excellent family outing. It is educational, it gets the kids outdoors and is free for all. This event is canceled in the event of bad weather, including cloudy skies. Call 217-351-2567 if the weather is iffy. Public skywatches are held the Saturday after the 1st quarter moon. Take I57 south to Exit 229 which is Monticello Road. Turn Right onto Monticello Road and go 1.5 miles West. Turn Left onto County Road 700 E and proceed 1/2 mile South to the Observatory.

Upcoming Meetings 2019

Thursday, February 13

 CUAS Club Meeting
WhenThu, February 13, 7:00pm – 8:30pm
WhereWilliam M. Staerkel Planetarium, 2400 W Bradley Ave, Champaign, IL 61821, USA (map)
DescriptionA talk will be given by a professional or amateur astronomer on a different topic each month including upcoming astronomical events, constellation lore, CUAS planned special activities, current research, and other topics. We will use the planetarium’s projector to view interesting upcoming events happening in the night sky. A short club business meeting will precede the talks. Our members will be happy to help you figure out how to use your current telescope or help you figure out which type you may want to purchase. If you join the club, you can use our observing facilities and equipment.

Here’s a short video that introduces our club. Check it out:

Check out the Night Sky Network website:

Weather viewing conditions for the next 48 hours:

Click on the weather chart for key on how to read it.  (Basically blue = clear and white = cloudy)

The second largest planetarium in the state offers public programming on Friday and Saturday nights at Parkland College.
Call 351-2446 for a current schedule or see



Our club and its members belong to The Astronomical League.

We are a 501(c)(3) non-profit organization. Your contributions are tax-deductible.

You can easily donate with the PayPal Donate button below.