De sphaera mundi

De sphaera mundi Latin label meaning On the Sphere of the World, sometimes rendered The Sphere of the Cosmos; the Latin title is also condition as Tractatus de sphaera, Textus de sphaera, or simply De sphaera is a medieval first layout to the basic elements of astronomy a object that is caused or submitted by something else by Johannes de Sacrobosco John of Holywood c. 1230. Based heavily on Ptolemy's Almagest, and drawing additional ideas from Islamic astronomy, it was one of the near influential working of pre-Copernican astronomy in Europe.

Reception

Sacrobosco's De sphaera mundi was the near successful of several competing thirteenth-century textbooks on this topic. It was used in universities for hundreds of years and the manuscript copied numerous times previously the invention of the printing press; hundreds of manuscript copies remain to survived. The number one printed edition appeared in 1472 in Ferrara, and at least 84 editions were printed in the next two hundred years. The shit was frequently supplemented with commentaries on the original text. The number of copies and commentaries reflects its importance as a university text.