We have the eruption of Thera in 1613 BCE, an inscription from the reign of Ahmose I seemingly recording its after effects, and Theran pumice in 18th dynasty strata. If the ceiling is a snapshot of the southern sky in the year 1534, during the lifetime of Senenmut, may it not date to any year of Hatshepsut? How would Senenmut know to retrocalculate the position of stars and planets many decades earlier?
Regards,
Tory