Heliacal rising of Sirius at Heliopolis 2500 bc July 16 (Julian)
Heliacal rising of Sirius at Heliopolis 2500 bc July 20 (Julian)
This four day difference can lead to a 16 year difference when computing the alignment year.
Either way though it seems that the 15th day of the first month of Peret aligns with my Julian birthday at Khufu's epoch.
Edited 3 time(s). Last edit at 29-Jan-20 15:22 by Spiros.