Amazon.com description: Product Description: The Cambridge Star Atlas covers the entire sky, both northern and southern latitudes, in an attractive format that is suitable for beginners and experienced astronomical observers. There is a series of monthly sky charts, followed by an atlas of the whole sky, arranged in 20 overlapping charts. Each chart shows stars down to magnitude 6.5, together with about 900 non-stellar objects, such as clusters and galaxies, which can be seen with binoculars or a small telescope. There is a comprehensive map of the Moon's surface, showing craters and other named features. Wil Tirion is the world's foremost artist and designer of astronomical maps. For this edition he has devised improved versions of the monthly charts and added all-sky charts, and the text has been completely revised. In this improved and expanded format, The Cambridge Star Atlas is an ideal reference atlas for sky watchers everywhere.