A joint Egyptian-German mission has discovered a series of specialized stone altars at a remote site near the Dakhla Oasis, featuring precision-cut opal inlays that align with the heliacal rising of Sirius. These altars were used by priestly astronomers to calculate the exact moment for the commencement of Wepet Renpet, the ancient Egyptian New Year. The use of opals, likely traded from distant African regions, suggests a far-reaching economic network dedicated to religious festivals.
The site also yielded thousands of miniature clay lamps, indicating that the festival involved a massive nocturnal vigil culminating in the "capturing" of the first solar rays in the reflective surfaces of the opals. This discovery redefines our understanding of how ancient communities outside the Nile Valley synchronized their festival calendars with celestial events.