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Armillary sphere
01
a model of the celestial sphere, historically used to depict and study the positions of celestial objects, consisting of a series of hoops representing important circles in the sky
Examples
The armillary sphere was used by astronomers in ancient Greece to demonstrate the motions of stars and planets.
During the Renaissance, armillary spheres became intricate works of art, crafted from brass and adorned with decorative features.
