Stars and their Spectra: An Introduction to the Spectral Sequence - Tapa blanda

'... a thorough and up-to-date survey of their spectral and photometric properties, structure and evolution, and how we find out about all this.' Sky and Telescope

'... well written and makes interesting reading ... will be welcomed by anyone with an interest in stellar properties.' Journal of the British Astronomical Association

'... a popular and well written account of our present day knowledge of stellar astronomy ... strongly recommended ... a stimulating and informative read.' Observatory

'This is one of Kaler's best books (the other one being The Cambridge Encyclopaedia of Stars). After a brief introduction to quantum physics and the laws governing emission and absorption spectra, plus the history of the spectral classification system, the author addresses each spectral class. ...One of Kaler's fortes is the clear explanation of astrophysics in plain English. If you have an interest in stellar spectroscopy, definitely get this book. You will get you money's worth, because you will read it at least twice.' American Association of Variable Star Observers Bookstore

The study of stars and their spectra is central to an understanding of classical and modern astronomy. The principal tool for investigating the nature of stars is to observe and interpret their spectra. In this lucid book, James Kaler clearly explains the alphabet of stellar astronomy - from the cool M stars to hot O stars - and tells the story of the evolution of stars and their place in the Universe. Before embarking on a fascinating voyage of cosmic discovery, we are introduced to the fundamental properties of stars, and how they can be categorised. Next, the structure of atoms and the formation of spectra is discussed, as a prelude to a full description of the spectral classification itself. The heart of the book examines each star type in turn and explores their spectra in detail. Notable discoveries and features related to each class sustain the story. There is also a review of unusual stars that cannot easily be classified. Finally, the book closes with a skilful integration of all the data - tracing the paths of birth, life and death of stars on the Hertzsprung-Russell diagram. This book is based on a widely acclaimed series of articles on stellar astronomy which appeared in the magazine Sky and Telescope. It provides an invaluable introduction for observers and students.