Herong's Notes on Astrology and Horoscope
Dr. Herong Yang, Version 2.01

What Is Astrology

This section describes what is astrology.

The best definition of astrology that I can find on the Internet is from wikipedia.org, where astrology is defined as: Astrology is a group of systems, traditions, and beliefs in which knowledge of the relative positions of celestial bodies and related details is held to be useful in understanding, interpreting, and organizing information about personality, human affairs, and other terrestrial matters.

The word astrology is derived from the Greek word "aster" (star) and "logos" (speech, statement, reason).

Wikipedia's definition of astrology matches well with a portrait included in "Detail of Ptolemy on the Frontispiece of Cellarius Celestial Atlas, 1660", http://www.er.uqam.ca/nobel/r14310/Ptolemy/:

Astrology Definition

To understand astrology, you need to understand the following:

  • Relative positions of celestial bodies in the solar system: Earth, Sun, Moon, Mercury, and other planets.
  • How those relative positions change over time.
  • Beliefs of how mankind is influenced by those relative positions.

Astrology has a long history. Astrology started among the ancient Babylonians before 17th century BC, and spread to Greece about the middle of the 4th century BC. Some other cultures and civilizations developed their own branches astrology, like India, China, Maya, etc.

Today, there are three major branches of astrology: Western astrology, Jyotisha (Indian) Astrology, and Chinese astrology. But Western and Indian astrology are essentially similar in many areas.

Table of Contents

 About This Book

Quick Introduction to Astrology

What Is Astrology

 Western Astrology

 Jyotisha - Indian or Hindu Astrology

 Chinese Astrology

 Basics of Astrology and Astronomy

 Stars

 Constellations

 Introduction to Western Zodiac Signs

 Horoscope and Horoscopic Astrology

 Horoscope and Planets

 Chinese Astrology and Horoscope

 Chinese Zodiac Animal Signs

 References

 PDF Printing Version

Dr. Herong Yang, updated in 2007
What Is Astrology