Conventional star atlases are great for locating constellations and individual stars but The Star Atlas Companion goes one step further and describes the physical properties of more than 1,100 stars. With the aid of scale diagrams, the reader can get a real sense of the sizes, shapes, distances, and surface features of many of the stars visible to the naked eye in both the Nothern and Southern Hemispheres. Information on their rotational velocities and periods is given together with their spectral type and luminosity. Binary and multiple star systems are explained in detail. Special mention is made of Barnard's, Kapteyn's, Kepler's, and Van Maanen's Stars and the properties of many open clusters are given. With its emphasis on helping the amateur astronomer gain a better understanding of what they are looking at. The Star Atlas Companion will provide a new dimension to observing the star and is an invaluable supplement to any star atlas.

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 full colour 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 designer of astronomical maps. For this new edition he has devised improved versions of all the charts, and the text and star data have been completely revised based on the latest information. Clear, authoritative and easy-to-use, The Cambridge Star Atlas is an ideal reference atlas for sky watchers everywhere.