The decans (; Ancient Egyptian: ๐ ก๐ก๐๐๐ ฑ๐ผ, romanized: b๊ฃkt.w, lit.โ'[those] connected with work') 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 decans (; Ancient Egyptian: ๐ ก๐ก๐๐๐ ฑ๐ผ, romanized: b๊ฃkt.w, lit.โ'[those] connected with work') 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.
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