1. Astrophysical Information.- 2. The Earth's Atmosphere and Space.- 3. Radiation and Photometry.- 4. Telescopes and Images.- 5. Spectral Analysis.- 6. The Signal in Astronomy.- 7. Detectors.- 8. Space-Time Reference Frames.- Appendix A. Fourier Transforms.- A.1 Definitions and Properties.- A.1.1 Definitions.- A.1.2 Some Properties.- A.1.3 Important Special Cases in One Dimension.- A.1.4 Important Special Cases in Two Dimensions.- A.1.5 Important Theorems.- A.2 Physical Quantities and Fourier Transforms.- A.3 Wavelets.- Appendix B. Random Processes and Variables.- B.1 Random Variables.- B.2 Random or Stochastic Processes.- B.3 Physical Measurements and Estimates.- B.3.1 An Example of Estimation: Law of Large Numbers.- B.3.2 Estimating the Moments of a Process.- B.3.3 Estimation and Bias.- Appendix C. Physical and Astronomical Constants.- Appendix D. Tables of Space Missions.- Appendix E. Astronomy on the World Wide Web.- Appendix F. Acronyms and Abbreviations.

This second edition has been entirely restructured and almost doubled in size, in order to improve clarity and account for the great progress achieved in the field over the last 15 years.
"This is not a handbook for observers. It is a broader reference for students, active researchers, and anyone who wants a detailed look at the tools of modern astronomy..." -PHYSICS TODAY