A view of the Tycho Armillary Sphere reproduction on display in Explore the Universe. The Sphere was built by Danish astronomer Tycho Brahe in the late 1500s to study the sky and to teach about the celestial coordinate system.
Image Number: SI2001-9898
For print or commercial use, please contact: Smithsonian Institution
Reproductions are not currently available. If you would like to use this image as-is, please submit a permission request.