ASTRONOMICAL ALGORITHMS
By Jean Meeus

Not a book for everyone, but for some it is a Godsend. Virtually everyone who has produced an almanac of celestial body positions, or has programmed a computer to do so, has been guided by this book. Anyone with a serious interest in astronomy or celestial mechanics will benefit from the clear discussions and worked examples. HC, 2000, 477 pages, SW 1.5 lbs.