An armillary sphere (variations are known as spherical astrolabe, armilla, or armil) is a model of objects in the sky (on the celestial sphere), consisting of a spherical framework of rings, centered on Earth or the Sun, that … 展开

China
Throughout Chinese history, astronomers have created celestial globes (Chinese: 渾象) to assist the observation of the stars. The Chinese also used … 展开

The armillary sphere is commonly used in heraldry and vexillology, being mainly known as a symbol associated with Portugal, the 展开

• Starry Messenger Archived 2014-10-12 at the Wayback Machine
• Armillary Spheres and Teaching Astronomy | Whipple Museum
• AstroMedia* Verlag in Germany offers a cardboard construction kit for an armillary sphere ("Das Kleine … 展开

The exterior parts of this machine are a compages [or framework] of brass rings, which represent the principal circles of the heavens:
1. The … 展开

An artwork-based model of an Armillary sphere has been used since the March 1, 2014 to light the Paralympic heritage flame at Stoke Mandeville Stadium, United Kingdom. The sphere … 展开

• Antikythera mechanism – Ancient analogue astronomical computer
• Celestial globe – Type of star chart where the map is arranged on a globe
• Atlas (statue) – Statue of Atlas at Rockefeller Center in Manhattan, New York, U.S. 展开