Medieval Diagram Of An Armillary Sphere
by Renaissance And Medieval Manuscripts Collection/new York Public Library
Title
Medieval Diagram Of An Armillary Sphere
Artist
Renaissance And Medieval Manuscripts Collection/new York Public Library
Medium
Photograph - Photograph
Description
Medieval diagram of an armillary sphere. 1230 artwork from De sphaera mundi, by the Parisian astronomer and monk Johannes de Sacrobosco (circa 1195-1256). De sphaera mundi is a short astronomy textbook that was widely read and influential in Europe as an introduction to astronomy. An armillary sphere is a model of objects in the sky (in the celestial sphere), consisting of a spherical framework of rings, centred on Earth, that represent lines of celestial longitude and latitude and other astronomically important features such as the ecliptic. As such, it differs from a celestial globe, which is a smooth sphere whose principal purpose is to map the constellations. Medieval depiction of a lunar eclipse.
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July 25th, 2016
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