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Tessmann Planetarium proposed copy.jpg
Proposed look for the Tessmann Planetarium. Image courtesy of westbergwhite architecture.

March 6, 2014
The planetarium is officially closed until the fall for remodeling.

We'll post regular progress reports and let you know how everything's going.

We'll also be posting new classroom aids on this website, like A Guide to Comets (see links at left). And we'll be posting the latest information in astronomy, including what to see in the night sky each month.

You can also see our astronomy postings on our Facebook page. Search for "Tessmann Planetarium."

Check back often to see how we're doing.


The Tessmann Planetarium is getting a facelift.

The Tessmann building is nearing its 50th birthday and has had thousands of children and adults passing through its doors to the cosmos year after year. That’s a lot of wear and tear.

This year, Santa Ana College is beginning a remodeling of most of its campus-and is beginning with our planetarium. We’re getting a new roof (sorely needed), beautiful cosmic images on our outside walls, a remodeled lobby and even a new bathroom facility. Watch for updates to find out how we are going to improve our shows.

However, this does mean that the planetarium will have to close its doors for several months this year.
The construction will take place between November (please see latest date information above) and next summer. Due to uncertainties with the contractors’ schedules and because of safety issues, we will not be able to present shows through much of this period.

However, there may be windows of opportunity to schedule a limited amount of shows. Contractors will let us know when there are times we can bring in the public. We will take names of schools and groups that are interested in waiting for an opening. We can’t promise anything, but we will try to schedule as many shows as possible. We will be scheduling shows until at least November 1st.

If you’d like to get on our notification list, call our reservation line at 714-564-6356.
Look for updates in our newsletters. We will also post the latest information on our Facebook Page (search for “Tessmann Planetarium”) and the college website (…click on the Planetarium link). We will be posting educational material for the classroom. We will keep you informed about the latest on comets, the solar system and other astronomical events.

And watch this website for contests (win a free field trip for your class to the new and improved planetarium, and other goodies).

If you would like to receive our newsletter, send an email to

We hope to have the new Tessmann ready by fall of 2014, and we look forward to seeing you then.

Steve Eastmond
Planetarium Director
Bob Menn
Coordinator and Program Director