A Folding Pocket Guide to the Moon, Its Surface Features, Phases and Eclipses The brightest and largest object in the night sky, the Moon is about 1/4 the diameter of Earth and is approximately 240,000 miles (385,000 km) distant. This folding pocket guide provides simplified reference to the Moon and its surface features, its phases (and how these affect gravitation on Earth), eclipses, myths and viewing hints. Detailed maps of the Moon highlight prominent craters, mountains ranges, seas, highlands and manned moon landing sites. Laminated for durability, this indispensable pocket reference is ideal for astronomers of all ages. Made in the USA. UPC 884682012649 SIZE 4"L x 8.2.5"W Folded 22"L x 8.2.5"W Unfolded WEIGHT (LBS) .25 lbs BRAND Waterford Press