Steampunk Astrolabe Necklace

*** THIS IS ONLY AN IMAGE OF AN ASTROLABE UNDER GLASS - NO MOVING DIAL* 1" Diameter Pendant Adjustable 20" Chain Necklace Antique Brass Metal The astrolabe (was an elaborate inclinometer, historically used by astronomers and navigators, to measure the inclined position in the sky of a celestial body, day or night. It can thus be used to identify stars or planets, to determine local latitude given local time and vice versa, to survey, or to triangulate. It was used in classical antiquity, the Islamic Golden Age, the European Middle Ages and the Renaissance for all these purposes.