Primum Mobile
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In classical, medieval, and Renaissance astronomy, the Primum Mobile was the outermost moving sphere in the geocentric model of the universe.
The angel of the Primum Mobile from the E-Series of the so-called Mantegna Tarocchi
Empyrean
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In ancient European cosmologies inspired by Aristotle, the Empyrean heaven, Empyreal or simply the Empyrean, was the place in the highest heaven which was supposed to be occupied by the element of fir
Primum Mobile
…invisible orbs, while an eighth sphere contained the fixed stars. Motion was provided to the whole system by the Primum Mobile, itself set within the Empyrean, and the fastest moving of all the spheres. The total number of celestial spheres was not fixed. In this 16th-century illustration, the firmament (sphere…
The Divine Comedy's Empyrean, illustrated by Gustave Doré