Globe - Spherical astrolabe

06
days
21
hours
30
minutes
02
seconds
Current bid
€ 50
Reserve price not met
Paula Martin-Calero Toro
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Selected by Paula Martin-Calero Toro

Holds a degree in art history; over six years cataloguing and appraising antiques.

Estimate  € 200 - € 250
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deBidder 5149
€50

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Spherical astrolabe from the 20th century, made of brass, wood, iron and paper with a wooden base, and measuring 50 cm in height, 17 cm in sphere diameter and 11 cm in base diameter, originating from Italy.

AI-assisted summary

Description from the seller

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.

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.

Details

Era
1900-2000
Material
Brass, Iron, Paper, Wood
Country of Origin
Italy
Condition
Good condition - used with small signs of aging & blemishes
Height
50 cm
Width
17 cm
Depth
11 cm
Estimated Period
Spherical astrolabe
Sold by
ItalyVerified
1613
Objects sold
96.49%
Private

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