In episode 181 of the podcast Dr. Jeffrey Kotyk joins the show to talk about the practice of astrology in China in ancient times, and in particular the transmission of horoscopic astrology to China and Japan starting in the 9th century.

Jeffrey is an academic historian from Winnipeg, Canada, who specializes in the study of astrology in pre-modern Asia. He completed a PhD dissertation at Leiden University in 2017 titled Buddhist Astrology and Astral Magic in the Tang Dynasty.

A major part of his research has focused on investigating the transmission of horoscopic astrology to China and Japan starting in the 9th century. Horoscopic astrology or horoscopy here is defined as the type of astrology that uses the Ascendant and twelve houses, which was developed in the west around the 1st century BCE.

According to Jeffrey, the principal source of this transmission was the text of the Greco-Roman astrologer Dorotheus of Sidon, which was originally written in Greek in the late 1st century CE. Dorotheus was translated into Persian around the 3rd century, and then it was translated from Persian into Chinese around the year 800 CE.

During the course of our interview we discuss the origins of Chinese astrology, and how the indigenous form of mundane astrology developed there around the 2nd century BCE, and later came to be practiced alongside western natal astrology derived from Dorotheus.

Jeffrey recently wrote a concise overview of much of his research on this topic in a post on his blog titled Horoscopy in East Asia: Some Thoughts. You can read his dissertation and other academic papers he has written through his page on Archive.org.

Show Notes

Here is an outline of some of the main points we touched on in the episode:

Jeffrey’s focus is academic studies on astrology in pre-modern Asia.

The life and work of David Pingree (1933-2005).

The work of Yano Michio.

Why has astrology been neglected in the study of China and Japan?

Historical background: Native Chinese celestial omenology.

Nakṣatra (lunar mansion) astrology in India.

Early Buddhist interest in astrology: lunation used for scheduling monastic meetings ( pakṣas and tithis ).

and ). Translation of Buddhist scriptures into China containing astrology.

Navagraha-karaṇa translated in 718 by Gautama Siddhārtha: Indian astronomy in China.

translated in 718 by Gautama Siddhārtha: Indian astronomy in China. The use of astrology in timing rituals in Esoteric Buddhism: seven-day week, etc.

Śubhakarasiṃha (637–735) and his colleague Yixing (673–727).

Amoghavajra’s (705–774) astrology manual: Xiuyao jing (Scripture of Constellations and Planets), produced in 759 with a subsequent revision in 764.

(Scripture of Constellations and Planets), produced in 759 with a subsequent revision in 764. The difficulty of implementing nakṣatras into Chinese observational astronomy.

into Chinese observational astronomy. The navāṃsas or ninths of a zodiac sign.

or ninths of a zodiac sign. The method of tārā-cakra (“Star Wheel”), or nava-tārā (“Nine Stars”).

(“Star Wheel”), or (“Nine Stars”). Li Miqian and the introduction of Dorotheus into China in the 9th century.

Dorothean material in Chinese sources (triplicity rulers, lots, decans).

Was the translated material purely Dorotheus? Lunar mansions.

The use of lots in Chinese horoscopy.

The popularity of annual profections. Natal horoscope of 3 October 930 CE produced on 25 January 975 by Kang Zun.

The use of the whole sign house system in East Asian horoscopy.

Introduction of Ptolemaic astrology into China via the al-Madkhal by Kūšyār ibn Labbān in the late 14th century.

by Kūšyār ibn Labbān in the late 14th century. Horoscopy in 16th century China: Wan Minying.

Sukuyōdō: Japanese Buddhist astrology from the 10th to 14th centuries.

Astral magic: what was it?

Astral deities in ancient Chinese lore and Daoist worship of the Big Dipper.

The planets as deities: a Mesopotamian concept that spread to China via Buddhism.

Parallels between astral magic in medieval Daoist + Buddhist sources and the Picatrix .

. Japanese Star Mandalas.

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