The Astrolabe Project

  title={The Astrolabe Project},
  author={Filipe Castro and Nicholas C. Budsberg and James A. Jobling and A. Passen},
  journal={Journal of Maritime Archaeology},
Abstract Marine astrolabes were a simplification of the existing Islamic calculating devices and were used during the sixteenth and seventeenth centuries to measure the height of the sun at noon on sailing ships. With this value and the proper tables, sea captains could calculate the latitude and estimate the position of their ships during the long oceanic voyages that characterized the first age of globalization. This paper presents an inventory of all marine astrolabes known to exist, and… Expand
The Rio Grande do Norte Astrolabe
The Rio Grande do Norte astrolabe may have been found in Brazilian waters, although its provenance is unclear. It was bought and sold at auction in the Unites States in 2011, and the instrumentExpand
An Early Portuguese Mariner's Astrolabe from the Sodré Wreck‐site, Al Hallaniyah, Oman
Abstract A unique leaded‐gunmetal disc decorated with iconic Portuguese markings was recovered in 2014 during archaeological excavations at the Sodré shipwreck site in Al Hallaniyah, Oman. InitiallyExpand


Un astrolabe nautique de la Casa de Contratación (Seville, 1563)
Destombes Marcel. Un astrolabe nautique de la Casa de Contratacion (Seville, 1563). In: Revue d'histoire des sciences et de leurs applications, tome 22, n°1, 1969. pp. 33-64.
The Medici Conspiracy: The Illicit Journey of Looted Antiquities--From Italy's Tomb Raiders to the World's Greatest Museums
The story begins, as stories do in all good thrillers, with a botched robbery and a police chase. Eight Apuleian vases of the fourth century B.C. are discovered in the swimming pool of a German-basedExpand