books.google.ca - The third edition of a guide book for amateur astronomers features new sections on generalized coordinate transformations, nutations, aberration, and selenographic coordinates as well as improvements to the sunrise and moonrise calculations....http://books.google.ca/books/about/Practical_Astronomy_With_Your_Calculator.html?id=DwJfCtzaVvYC&utm_source=gb-gplus-sharePractical Astronomy With Your Calculator
