Circular sphere instrument
3D model of equipment
Circular sphere instrument
Spherical altimeter
Astronomical tools
Astronomical instruments
Ancient astronomical tools
Observation tools
Astronomical tools
Astronomical instruments
Ancient tools
1
Coin
The copyright of the 3D model belongs to the original author and the material may not be distributed, published, transmitted, copied, rented, resold or compiled in any form.
A circular sphere (also known as a spherical altimeter, or abbreviated as an armilla or armil) is a model of an object in the sky (celestial sphere), containing a spherical frame of the Earth at its center, representing longitude and latitude, as well as other important astronomical features such as the ecliptic. Therefore, it is different from the celestial sphere, which is a smooth sphere whose main function is to map constellations.
