Pavilion of Small Refractor1

Former pavilion of small refractor, built in 1932. Now is Solar Spectrograph dome. Solar Spectrograph (monochrom.) Littrow type, 9000 mm / 100 000 developped by attaching to the Zeiss equatorial 200 / 3020 mm two astrocameras Tessar and Petzval 100/800 mm.

From Wikimedia Commons (Art Deco › Art Deco by country › Art Deco architecture by country › Art Deco buildings by country › Art Deco buildings in Serbia › Belgrade observatory). By Свифт/Svift. CC BY-SA 3.0.