Welcome to CAA

We’re in our 65th year!

The Cuyahoga Astronomical Association (CAA) is a nonprofit organization established in 1957. Its purpose is to organize local amateur astronomers and to promote the science of astronomy to its members and the general public.

We conduct regular meetings and events that are free and open to everyone.

Image: Logo of the Cuyahoga Astronomical Association

Our Public Programs

Monthly Meetings

Our meetings are free and programs are open to the general public. The programs are held on the campus of Baldwin Wallace University. The programs typically begin with a presentation of an astronomy-related subject.

You can find out more on our Public Events page.

Star Parties

What’s a star party? Many times during the year members of the CAA bring their telescopes out and allow the general public to view the moon, planets, and deep-sky objects such as nebulae and star clusters. . It is a great opportunity to look through different telescopes and compare them.

You can find out more on our Public Events page.


The CAA is a charter member of the Ohio Turnpike Astronomers Association (OTAA), a consortium of amateur astronomer associations sponsoring conventions each summer.

The CAA is also affiliated with the Night Sky Network which is a nationwide coalition of amateur astronomy clubs bringing the science, technology, and inspiration of NASA’s missions to the general public.

Image: Night Sky Network

Major Public Programs of the Past

  • Event with largest attendance:  2017 Solar Eclipse at Edgewater Park (10,000 est)
  • Event with largest number of scopes:  2012 Transit of Venus Edgewater (counted 40)
  • Longest duration of public event: 2005 Astronomy Day at NASA Glenn Research Center — 9:00 AM – 11:59 PM.  (20+ scopes with 4,500 people attending!)
  • Possibly most extreme conditions: 1985-1986 apparition of Comet 1P/Halley at Cleveland Metroparks’ Hinckley Reservation, about 4:00 AM, temperature about 0 degrees, snow on the ground, an estimated 1,300 attended.
  • Largest, unexpected attendance: 2003 Mars party at Huntington Beach (15 telescopes for 200 people; 3,000 attended and another 3,000 people never found parking. Cleveland Metroparks rangers and Bay Village police proclaimed largest traffic-jam in Bay History!)

Contact Us via Email: CONTACT US


Interested in joining the CAA? Please visit our Membership page!