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Claudius Ptolemy, Cosmographia


Claudius Ptolemy (2nd century A.D.)
Cosmographia, second half of 15th century
Florence, Biblioteca Medicea Laurenziana, Pl. 30.3, ff. 75v-76r

Second version by Nicholaus Germanus of the eight books of Ptolemy's treatise. The planisphere is drawn on the basis of Ptolemy's second projection, which posits a geometrical approach similar to that of maps of the heavens: representation on the plane of a spherical surface.