Tables of Spectra of Hydrogen, Carbon, Nitrogen, and Oxygen Atoms and Ions completely updates Charlotte E. Moore's energy levels and multiplet tables derived from analyses of optical spectra of hydrogen, carbon, nitrogen, and oxygen. The book contains data for neutrals and for all stages of ionization. Configurations, term designations, J-values, energy levels, and ionization potentials are provided as well. The book will benefit astronomers, atomic and optical physicists, plasma physicists, and chemists.

This new, fourth, edition of Allen's classic Astrophysical Quantities belongs on every astronomer's bookshelf. It has been thoroughly revised and brought up to date by a team of more than ninety internationally renowned astronomers and astrophysicists. While it follows the basic format of the original, this indispensable reference has grown to more than twice the size of the earlier editions to accommodate the great strides made in astronomy and astrophysics. It includes detailed tables of the most recent data on: - General constants and units - Atoms, molecules, and spectra - Observational astronomy at all wavelengths from radio to gamma-rays, and neutrinos - Planetary astronomy: Earth, planets and satellites, and solar system small bodies - The Sun, normal stars, and stars with special characteristics - Stellar populations - Cataclysmic and symbiotic variables, supernovae - Theoretical stellar evolution - Circumstellar and interstellar material - Star clusters, galaxies, quasars, and active galactic nuclei - Clusters and groups of galaxies - Cosmology. As well as much explanatory material and extensive and up-to-date bibliographies.