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Celebrating a Century of Visual Wonders.

About The Centennial

2023 is a very special year for the planetarium world.

The planetarium will be 100 years old. In 1923, a team from the Carl Zeiss company led by Walther Bauersfeld completed the first planetarium based on optical-mechanical light projection in Jena. The IPS (International Planetarium Society) and the GDP (Gesellschaft Deutschsprachiger Planetarien e. V.), with the support of the Carl Zeiss Foundation, would like to celebrate this great event together with many planetariums.

Today, there are more than 4,000 planetariums worldwide. They are places where the universe can be experienced: Thanks to innovative planetarium technology, visitors travel deep into space and learn about our solar system and the history of our Earth. Planetariums offer much more than just a glimpse of the stars: They broaden horizons, inspire enthusiasm for science and technology, and unite science, art, culture and education in a unique way.

From 2023 to 2025, we will be focusing attention on planetariums in German-speaking countries and around the world as part of numerous campaigns.

A 100 Years Planetarium team consisting of national and international colleagues, supported by professionals for marketing, PR and organization, will take care of the measures during the anniversary.

Latest Press Releases

100 Jahre Planetarium GDP Logo

About the GDP

The Society of German-Speaking Planetariums e.V. (GDP) is an association of planetariums, their employees, as well as people interested in planetariums, mainly from Germany, Austria and Switzerland, but also from other countries, with the goal of to promote the cooperation of planetariums in the German-speaking countries. The society was founded in May 2011 and is recognized as a non-profit organization

Logo IPS Internation Planetarium Society

About the IPS

The International Planetarium Society Inc (IPS) is a worldwide association of planetarium professionals with more than 600 members from 42 countries around the world. It represents schools, colleges and universities, museums, and public institutions of all sizes. The primary goal of the IPS is to promote the exchange of ideas among its members through conferences, publications, and networking.