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This dial is a solar altitude clock
Length: 13
On the front
Portable universal (all latitudes) sundial
Rojas' Astrolabe Compass This dial is a solarThe astrolabe is an astronomical calculating device used from ancient times into the eighteenth century. Handcrafted in brass. Beautifully made working reproduction Rojas astrolabe. The astrolabe reached the peak of its popularity in the 16th century. The Spanish astronomer and mathematician Juan de Rojas presented to the European public the Orthographic Projection (1550). This projection was successfully applied in a new type of astrolabe that