Tag Archive for 'Cairo Calendar'

An artist’s impression of a binary stellar system. Image credit: L. Calçada / ESO.

Did Ancient Egyptian Scribes Discover Algol’s Variability 3,000 Years before European Astronomers?

Nov 16, 2018 by News Staff

An ancient Egyptian Calendar of Lucky and Unlucky Days assigns luck with the period of 2.85 days. Previous astronomical, astrophysical and statistical...

Text of Cairo Calendar page rto VIII; inside the superimposed rectangle is the hieratic writing for the word Horus. A passage in this document dates it to the reign of Ramses II in the Nineteenth Dynasty. Image credit: Jetsu L. / Porceddu S., doi: 10.1371/journal.pone.0144140.s001.

3,200-Year-Old Papyrus Contains Astrophysical Information about Variable Star Algol

Dec 23, 2015 by Sergio Prostak

Ancient Egyptians wrote Calendars of Lucky and Unlucky Days that assigned astronomically influenced prognoses for each day of the year. The best preserved...