Astrophysical Formulae: Space, Time, Matter and Cosmology - Astronomy and Astrophysics Library 3 Rev edition Kenneth R. Lang

This is a definitive reference of 2,100 fundamental formulae used in astronomy and astrophysics. It not only makes accessible all the indispensable equations employed in the field, but also carefully explains the physical assumptions and constants underlying them. The bibliography contains more than 1,900 citations of original papers. Accounting for nearly 20 years since the previous edition, this volume is significantly revised and expanded.