What Is Astronomy

This section describes what is astronomy.

Astronomy is a natural science that studies celestial objects (such as stars, planets, comets, and galaxies) and phenomena that originate outside the Earth's atmosphere (such as auroras and cosmic background radiation). It is concerned with the evolution, physics, chemistry, meteorology, and motion of celestial objects, as well as the formation and development of the universe. The word astronomy literally means "law of the stars" in Greek.

Astronomy is a different than astrology. But it is related to astrology the following areas:

In the next several sections, we will look at some of the basic knowledge of astrology and astronomy.

Table of Contents

 About This Book

 Quick Introduction to Astrology

Basics of Astrology and Astronomy

What Is Astronomy

 The Solar System

 The Celestial Sphere

 The Celestial Sphere Coordinate System

 The Celestial Meridian and Zenith

 The Ecliptic

 The Precession - Rotation of Earth's Axis

 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