Christie’s roundel
Lot 152

AN ITALIAN ARMILLARY SPHERE

17TH CENTURY

Closed29 October 2009

Price Realised

GBP 187,250

More Information

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AN ITALIAN ARMILLARY SPHERE
17TH CENTURY
All rings labeled in Latin with punched lettering, supported in outer ring divided 0°-90°-0°-90° with punched numerals, hour ring and pointer to top; the armillary composed of two fixed meridian rings, equatorial, tropics and polar circles and wider zodiac band which is divided on both inner and out surfaces, the outer surface marked with engraved images for each house, inner rotating rings bearing engraved image of sun and a crescent moon, two arms for (lacking) central axis to support earth globe; supported in an associated horizon ring engraved with months on a tripod stand
14 in. (35.5 cm.) high

Acquired through Pierre Delbée by Don Bartolomé March Servera for the Library in Miguel Angel, Madrid, circa 1965.

Specialist note

The armillary sphere is a demonstrational model of the universe. Composed of several rings (Armillae in Latin) and a band for the Zodiac, it represents the apparent movement of the celestial sphere around the Earth and marks the Sun's annual progress around the ecliptic.
Their use can be traced back to antiquity and the handful of earliest extant examples date from the Middle Ages. But it was in the 16th and 17th centuries that their construction reached a peak and they became such iconic instruments of science. Elaborate and decorative examples were made for princely collections and they became symbolic of astronomy in paintings and engravings of the time.