The planetarium opened on 26 January 1957, at which time it was the only planetarium in Brazil; it was opened by Orsini, who subsequently led the initial operation of the planetarium, at the invitation of Maury de Freitas Julião and Wladimir de Toledo Pizza Sobrinho.
The planetarium opened on 26 January 1957. It was the only planetarium in Brazil. It was opened by Orsini. Orsini subsequently led the initial operation of the planetarium. This was at the invitation of Maury de Freitas Julião. This was at the invitation of Wladimir de Toledo Pizza Sobrinho.