Naos of the Decades

The naos is dedicated to the god Shu-Sopdu and dates to the reign of Nectanebo I.

An astrological calendar is engraved on its sides depicting 36 decades, or 10-day periods marked by small constellations of stars called decans.

[1] The upper part of the monument, known as the pyramidion, has been on display in the Louvre Museum since 1817, and it was discovered and brought back by French explorers.

One large piece was found in 1940 by Prince Omar Toussoun and is held at the Graeco-Roman Museum in Alexandria.

Other pieces were discovered in 2001 by Franck Goddio during the underwater excavations he organized in search of the sunken cities of Canopus and Heracleion.