Decani
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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"
Wikidata facts
- Instance of
- unit of time
- Subclass of
- unit of time
- Duration
- 10
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- used by
- Egyptian calendar
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