The Milky Way: A Guide

The Milky Way is the galaxy that contains our Solar System. The descriptive "milky" is derived from the appearance from Earth of the galaxy – a band of light seen in the night sky formed from stars that cannot be individually distinguished by the naked eye. The Milky Way is a barred spiral galaxy with a diameter between 100,000 and 180,000 light-years. The Milky Way is estimated to contain 100–400 billion stars. There are probably at least 100 billion planets in the Milky Way.

This book provides its readers with complete details of the Milky Way.