The Månen exhibit includes a superb collection of rare manuscripts. Petrus Apianus’ Astronicum Caereum published in Austria in 1540 is a very unusual and colorful manuscript. The book contains a series of colorful paper revolving wheels that demonstrate and explain the movements of the heavenly bodies and eclipses of the sun and the moon.

Location: Sweden's Observatory Museum, Stockholm, Sweden
Date: Winter 2000/2001
Photo by: Thomas Johnson

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