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The name astrolabe comes from the Greek astro
Augsburg style
This beautiful compass is crafted from a wooden base with brass top and cover
It's used by measuring the height of a star using the back of the instrument
delight and entertain
Perpetual Calendar Quadrant The name astrolabe comes fromThis calendar starts on January 1st, 1600 and ends December 31st, 2799 it is based on the repeating cycle of 400 years and a solar cycle of 28 years. It works by means of the "Dominical Letter" This beautiful instrument is fashioned of brass and comes complete with wooden base and booklets explaining method of use and historical context. Diameter: 3. 54" Thickness: 0. 24"