Globe - Spherical astrolabe

Spherical astrolabe of the 20th century
Queen statue wearing a gala dress made of painted metal, triumphantly holding the spherical Globe. At the base, it features a wooden pedestal.

The measurements are:
Height 50 cm
Spherical astrolabe diameter 17 cm
Base diameter 11 cm


How does the armillary sphere work, and what was it used for?
An armillary sphere is an astronomical instrument used to model the celestial sphere and demonstrate the motion and position of the stars.
Features and Operation
It is composed of rings, called 'armille', which represent the main circles of the celestial sphere, such as the equator, the ecliptic, the meridians, and the polar circles.
It allowed the calculation of celestial events, observing the sun's path in the sky, and determining the times of sunrise and sunset of celestial objects in relation to the local solar noon.

story:
It was invented by Eratosthenes in 255 BC and used both as an educational tool and as an observational instrument, for example by Ptolemy.