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An early Portuguese mariner's astrolabe from the Sodré Wreck‐site, Al Hallaniyah, Oman
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Mearns, David L., Warnett, Jason M. and Williams, M. A. (2019) An early Portuguese mariner's astrolabe from the Sodré Wreck‐site, Al Hallaniyah, Oman. International Journal of Nautical Archaeology, 48 (2). pp. 495-506. doi:10.1111/1095-9270.12353 ISSN 1057-2414.
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Official URL: http://dx.doi.org/10.1111/1095-9270.12353
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. Initially the identity and function of the disc was unknown, although it did possess characteristics suggesting it could be an astrolabe. Laser imaging of the disc post conservation revealed regular scale marks on the limb of its upper right quadrant. Accurate digital measurements of the marks show them to be graded at close to 5‐degree intervals, thus confirming the identity of the disc as a mariner's astrolabe and the earliest known example discovered to date.
Item Type: | Journal Article | |||||||||||||||||||||
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Subjects: | C Auxiliary Sciences of History > CC Archaeology Q Science > QB Astronomy |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | |||||||||||||||||||||
Library of Congress Subject Headings (LCSH): | Astrolabes -- Portugal, Archaeology -- Óman, Shipwrecks -- Óman | |||||||||||||||||||||
Journal or Publication Title: | International Journal of Nautical Archaeology | |||||||||||||||||||||
Publisher: | Wiley-Blackwell Publishing, Inc | |||||||||||||||||||||
ISSN: | 1057-2414 | |||||||||||||||||||||
Official Date: | 2019 | |||||||||||||||||||||
Dates: |
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Volume: | 48 | |||||||||||||||||||||
Number: | 2 | |||||||||||||||||||||
Page Range: | pp. 495-506 | |||||||||||||||||||||
DOI: | 10.1111/1095-9270.12353 | |||||||||||||||||||||
Status: | Peer Reviewed | |||||||||||||||||||||
Publication Status: | Published | |||||||||||||||||||||
Access rights to Published version: | Open Access (Creative Commons) | |||||||||||||||||||||
Date of first compliant deposit: | 5 April 2019 | |||||||||||||||||||||
Date of first compliant Open Access: | 8 April 2019 | |||||||||||||||||||||
RIOXX Funder/Project Grant: |
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