Domes on the Papal Palace

With the move to Castel Gandolfo, two new Zeiss telescopes were constructed on the roof of the...

Zeiss Visual Telescope

The “Visual” telescope is a Zeiss 40 cm refractor; this design allowed for high magnification of...

Zeiss Double Astrograph

The principal instrument of the observatory, the Zeiss Double Astrograph, was located in a...

The Green Flash

 In the mid 1950s, observatory director Fr. Daniel O’Connell SJ and Br. Karl Treusch SJ (see photo...

Workshop on Stellar Populations

In 1957 the Pontifical Academy of Sciences and the Specola Vaticana co-sponsored a workshop on the...

Telescope Domes

The building we are in was constructed in two stages. The far dome in this image dates from 1942;...

Cart du Ciel Telescope

By the 1930s, the Carte du Ciel program had already been underway for forty years, and yet a...

Schmidt Telescope

In 1949, Stein proposed that the Specola purchase a second telescope of the modern Schmidt design....
Spectral Lines

Spectral Lines

The spectral lines of pure iron, shown above, give an idea of the complexity of the task of...

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Gizmo

Gizmo

This device, manufactured by Zeiss, was used to make the precise measurement of the positions of...

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The Green Flash

The Green Flash

 In the mid 1950s, observatory director Fr. Daniel O’Connell SJ and Br. Karl Treusch SJ (see photo...

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