What armillary sphere is made of
A model of the celestial sphere made of rings.
- Armillary rings — has part. The equator, ecliptic and meridian.
- Wooden stand — has part. A support with a horizon.
- Axle — has part. The celestial axis.
- Euclidean geometry — uses. The rings model the celestial circles.
- Bronze — is made of. Armillary spheres are bronze rings.