Aleksandr Boldyrev sundials
Sundials and cultural artifacts
The heavens model by Ptolemy
Specifications.
Single copy. Steel, gold 999 K, granite, jasper, limestone. The diameter of the meridian is 800 mm. Weight 75 kg.
Related information.
Description.
The gilded steel ball (Earth) casts the shadow on the scale on the inner surface of the stone bowl (the celestial sphere), and indicates the time and the declination of the sun. In the equatorial plane, seven balls made of granite and jasper symbolize the planets of the solar system.