Technical factors of Chinese astrology

an ancient ordering system of 12 ordinals, from east to west, also used in the dating system for time, astrological traditions, zodiac and ordinals in East Asia countries

Chinese constellations

thumb|upright=1.35|'Diagonal star table' from the late Eleventh Dynasty of Egypt|Eleventh Dynasty coffin lid; found at [[Asyut, Egypt. Roemer- und Pelizaeus-Museum Hildesheim]] The decans (; ) are 36 groups of stars (small constellations) used in ancient Egyptian astronomy to conveniently divide the 360 degree ecliptic into 36 parts of 10 degrees each, both for theurgical and heliacal chronometrical purposes. The decans each appeared, geocentrically, to rise consecutively on the horizon throughout each daily Earth rotation. The rising of each decan marked the beginning of a new decanal "hour"