Petrus Apian

Astronomicum Caesareum

Ingolstadt 1540.

2 volumes available

Among the variety of pages with moving parts comes first and foremost a set of planetary equatoria, paper wheels for finding the places of the planets within the zodiac. Embodying all the details of the geocentric Ptolemaic system, the volvelles and threaded charts provide a remarkably accurate graphical calculation of a planet's position.

Language

Latin

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Petrus Apian, Astronomicum Caesareum, Ingolstadt 1540.

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