The sundial of Caesaraugusta
DOI:
https://doi.org/10.3989/aespa.083.010.012Keywords:
Archaeoastronomy, Gnomonics, Roman sundialsAbstract
We report two techniques, whose origins can be found in Egypt and Chaldea, used in Rome for the construction of spherical sundials, and describe and classify the sundial fragment retrieved in the excavations performed at the Theatre of Caesaraugusta. Finally, with the analemma of Vitruvius, comparing it with the sundial on show at the National Museum of Roman Art in Mérida (Spain), we offer a reconstruction of the spherical sundial of Caesaraugusta, analyzing each of the lines that appear on its surface.
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References
Almagro Gorbea, A.; Raya, J. M. 1996: «Estudio fotogramétrico del reloj romano de Mérida» Anas 9, 79-88
Lull, J. 2006: La astronomía en el antiguo Egipto, Valencia
Raya, J. M. 1989: Los cuadrantes solares en la Arquitectura, Cádiz
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