A Planetarium for Every Classroom
Building and Using a Planetarium for Your Classroom Using Inexpensive Materials



There are three considerations you should be aware of with regards to safety in your cardboard dome (particularly the large one).

1. When painting the dome, make sure you are in a well-ventilated area. Paint fumes can be dangerous, even explosive.


2. When using the dome, make sure that the projector works properly and that there are no open sources of flames. The projector bulb should not come in contact with the cardboard; after all, the cardboard is flammable.


3. Some fire departments insist that large amounts of paper products should not be stored in a classroom or storage room. Check with your local jurisdiction about problems with the amount of cardboard used in the project.




NSTA Files

Building a Dome

2 Meter
5 Meter
Paint Your Project


Making a Projector

Building a Projector


Using the Planetarium




Celebration Checklist page

Send your dome building report to us!


Quick Links

Deer Valley High School Science Department

Antioch SPACE Academy

AstronomyTeacher's web site


Contact Us

Jeff Adkins

Cheryl Domenichelli



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This project was supported by a County Technology Academy Grant funded by the Dean and Margaret Lesher Foundation in cooperation with the Contra Costa County Office of Education.