Georg von Peuerbach (1423–1461) miwah Regiomontanus (1436–1476) ngwantu makarya panglimbak astronomi banget pisan mabuat ring panglimbak model heliosentris Copernicus makudang-kudang dekade salanturnyané.
Georg von Peuerbach (1423–1461) and Regiomontanus (1436–1476) helped make astronomical progress instrumental to Copernicus's development of the heliocentric model decades later.