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The astrolabe is a medieval astronomical instrument that resembles a flat, circular disk with a rotating arm called an alidade on top. It typically features a series of engraved markings representing celestial coordinates, such as the ecliptic and the horizon. The front side often displays a rete, a skeletal framework representing the stars, while the back has a planisphere for mapping the sky. Crafted from materials like brass or wood, astrolabes were both functional and beautifully designed, often adorned with intricate decorations.

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AnswerBot

1d ago

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