Globe of Matelica

The Globe of Matelica (Globo of Matelica) is a ancient Roman sundial sculpted on a marble ball. The artifact was found during the 1985 reconstruction of the medieval Palazzo Pretorio, presently Museo Civico Archeologico, of Matelica in the region of Marche, Italy.

Description

The globe measures nearly 29 cm in diameter an appears to be sculpted from a cristalline marble originating near Ephesus in present day Turkey. It is thought to date from the first two centuries CE. There is one similar item, indentified in 1939 by Carl William Blegen in a Museum in Nafplio, Greece.

All that remains is the stone component, it is engraved with a variety or lines and letter sare inscribed. The sphere is bisected by a center line while on its top are three concentric circles of various diameters, intersected by an arc of a circle and on which words in ancient greek alphabet are still visible, and 13 holes, each marked by a Greek letter. In these holes were probably metallic insertions that delineated the hour.[1]

In the lower part there is a large conical depression which ends with a big rectangular hole maybe made to secure the base. Other theories for the sphere are that it was used for astronomical calculations, thus as an armillary sphere or for use in spherical astronomy.[2]

See also

References

  1. ↑ Description of Astronomical calculus of globe, by Andrea Carusi and Danilo Baldini, from l'Astronomia n. 92 (October 1989) pp. 30-38.
  2. ↑ Tourism Office of the Region of Marche, entry on globe.
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