The centennial of the planetarium


The first planetarium projector was completed 100 years ago, providing the public with an unparalleled view of the night sky. The International Planetarium Society is marking this major anniversary with celebratory events across the globe.

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Fig. 1: The first planetarium projector.

dpa picture alliance / Alamy Stock Photo

Fig. 2: The first planetarium in South America.

Julio Etchart / Alamy Stock Photo

Fig. 3

Image courtesy of Phil Schrimsher and A. David Weigel, U.S. Space & Rocket Center

Fig. 4: Distribution of planetariums across the globe.

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Michael McConville, Björn Voss or Guilherme F. Marranghello.

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McConville, M., Voss, B. & Marranghello, G.F. The centennial of the planetarium.
Nat Astron 7, 1140–1142 (2023). https://doi.org/10.1038/s41550-023-02098-3

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  • Published: 17 October 2023

  • Issue Date: October 2023

  • DOI: https://doi.org/10.1038/s41550-023-02098-3

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