Miniature Nautical Astrolabe - Key Ring Zoetrope Diameter: 4

Diameter: 4

Vertical cylindric sundial (also called shepherd or traveler´s dial)

Legend has it that the Nocturnal Astrolabe was invented by Raimund Lill to administer doses of medicine to patients during the night

Classic office sundial

3" from the tip of the shell to the top of the bale

Miniature Nautical Astrolabe - Key Ring Zoetrope Diameter: 4Miniature nautical astrolabe. Was used for calculating latitude using Suns altitude. Scale reduced. This instrument is a replica of the Nautical Astrolabe of the "Valance", which is placed in the Kensington Museum and belonged to the Army of Philipe II (16th century). The nautical astrolabe is simplified to measure the altitude of the stars for purposes of navigation. Its heavier construction from those used on land was to compensate for the movement