Cadrans solaires sur trois mosaïques byzantines au Proche-Orient et quelques autres identifications hypothétiques de Gnomons géants

This paper proposes three new (and tentatively, another two) identifications of sundials in Middle Eastern mosaics of the 5th-8th century. The author discusses a vignette from the Holy Martyrs' Church at Tayibat al-Imâm, central Syria, a mosaic panel from the tomb of Georgia and Theodosia in Jerusalem, two vignettes of Sebastis and Kastron Mefaa from St. Stephan's Church at Umm al-Rasas, and a vignette of Jerusalem from St. Georg's Church at Madaba. Before this study, only six representations of sundials on mosaics from the Roman period were known. This paper adds three new items and two hypothetical ones from Byzantine times. It also offers an interpretation of the function of the famous column in Jerusalem, shown on the map of Madaba and the mega-vignette of the Holy City. (Résumé de la revue.)