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A comprehensive handbook on the tools, methods, and results of stellar taxonomy, this book describes modern methods of spectroscopic and photometric classification, and identifies particular families of stars, progressing from the hottest to the coolest. Within each category a description is given of the normal types and all the peculiar stars. The emphasis throughout is on the phenomenology of classification, rather than the underlying astrophysics.

This book presents a summary of our observational knowledge of the behavior of all chemical elements identified in stars. Whenever possible the behavior is described quantitatively, with the help of equivalent widths in different types of stars (e.g. dwarfs and supergiants), or different ionization stages, for both absorption and emission features. The authors also describe the behavior of isotopes, and there is a separate section on molecules in stars and circumstellar envelopes. This book will be a fundamental reference for observational astronomers and astrophysicists.

This book presents a summary of our observational knowledge of the behavior of all chemical elements identified in stars. Whenever possible the behavior is described quantitatively, with the help of equivalent widths in different types of stars (e.g. dwarfs and supergiants), or different ionization stages, for both absorption and emission features. The authors also describe the behavior of isotopes, and there is a separate section on molecules in stars and circumstellar envelopes. This book will be a fundamental reference for observational astronomers and astrophysicists.