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Divination and

Interpretation of Signs

in the Ancient World

by Amar Anus



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The Mathematics of the

Chinese Calendar


This paper by Professor Aslaksen is very helpful and understandable. An important addition to any library on Astrology. Click box below to download.



The Mathematics of the

Chinese Calendar

Helmer Aslaksen

Department of Mathematics

National University of Singapore



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Links: Articles on Chinese Astrology


The Eastern Zodiac

Shelly Wu


Wonders of the Chinese Zodiac


Chinese Zodiac Symbols

Dror Poleg

The Five Lunar Mansions

black tortoise button

Black Tortoise (Mercury)

white tiger button

White Tiger (Venus)

vermilion bird button

Vermilion Bird (Mars)

azure dragon button

Azure Dragon (Jupiter)

yellow dragon button

Yellow Dragon (Saturn)



Dunhuang Star Map

Dunhuang Star Map

gretchenAsterism or Constellation

Gretchen Heuring | ElderThink | 07.26.10


An Asterism and a Constellation were the same thing until 1930. If this sounds strange, read on.


Both "Asterism" and "Constellation" described a group of stars that form a recognizable shape such as a bear or a horse. Then, in 1930, the International Astronomical union changed the meaning of "Constellation" to describe an area of the sky. They divided the sky into 88 of them.


Today "Asterism" is the term we use to describe a group of stars that form a recognizable shape.


So the Big Dipper is made of seven bright stars that form the shape of a ladle. The Big Dipper is an Asterism. Ursa Major is one of the 88 constellations into which the sky has been divided.


Chinese Astrology


Ancient Chinese Astrology

Gretchen Heuring | ElderThink | 07.21.10


The first known Astrologers were Arabians who charted the movements of moon, sun and the five visible planets. As early as 3000 BC they made predictions based on their observation of changes in the heavenly bodies.


There was considerable trade between Arabia and China during these times (along the Silk Road) so it is not surprising that Chinese Astrology emerged soon after.


astrological circle


Chinese Astrologers Approached Things Differently


Ancient Chinese Astrologers were very methodical in their approach to understanding changes in the sky. They built observation buildings and kept careful calculations. Their discoveries about changes in the movement of heavenly bodies led to a calendar, a manner of keeping time, and methods for predicting eclipses and comets.


While the Ancient Chinese were developing their observation methods, they integrated their discoveries with the concept of harmony, or yin and yang.


With these tools, Chinese Astrologers developed methods for computing a person's fate and destiny. Calculations involve the day, time, and season of birth. Many of these methods are still used today.