25.4 MB (6.9 MB compressed)
2551 x 3484 pixels
21.6 x 29.5 cm ⏐ 8.5 x 11.6 in (300dpi)
CCI ARCHIVES / SCIENCE PHOTO LIBRARY CCI ARCHIVES / SCIENCE PHOTO LIBRARY
Zeiss planetarium projector Mark II. Historical image of the Mark II Zeiss projector, a planetarium projector manufactured in the 1930s by the German optical systems manufacturer Carl Zeiss. The Mark I Zeiss projector was the first planetarium projector in the world and had a distinctive appearance, with a single sphere of projection lenses supported above a large, angled 'planet cage'. Marks II through VI were similar in appearance, using two spheres of star projectors separated along a central axis that contained projectors for the planets. Image from 'Wonders of Peace and War', by Geza Supka, Hungary, 1939.
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