Astrology Notes - Herong's Notes - v2.13, by Herong Yang
The Celestial Sphere
This section provides some basic knowledge of the celestial sphere.
The celestial sphere is an imaginary sphere of infinite radius centered on the Earth, on which all celestial bodies are assumed to be projected. Note that:
The following picture provides a good illustration of the celestial sphere, http://www.pfm.howard.edu:
The celestial sphere can be viewed as the sphere ceiling of the Earth where stars are located. Of course, this is not true, our view of stars from the Earth is a projection of stars located in a 3-dimensional space:
Table of Contents
Quick Introduction to Astrology
►Basics of Astrology and Astronomy
The Celestial Sphere Coordinate System
The Celestial Meridian and Zenith
The Precession - Rotation of Earth's Axis
Introduction to Western Zodiac Signs
Horoscope and Horoscopic Astrology