Description: 4th edition of one of the most popular astronomy books, an ideal beginner's book to the night sky. It now includes double the number of night sky objects to observe, covers both hemispheres, the big Dobsonian telescopes as well as smaller reflectors and refractors, and is spiral bound for ease of use when outdoors. In-Stock: 15 Weight: 1307g Subject Keywords:Science,Nature,Maths ISBN: 9780521153973 Genre: Science & Nature (Maths & Sciences)