Planetarium technical personnel in the technical control cabin in equipment tests , Navy Planetarium, Belém, Lisbon, 1965.

The astronomical projector is visible with the optics installed; Also visible along the base of the dome, a replica of the urban area silhouette of the Belém. It is a fixed and metallic structure, in which the dome of the Jerónimos Monastery, the 25 de Abril Bridge and Cristo Rei can be identified.