In order to analyze the light of cosmic objects particularly at extremely great distances
spectroscopy is the workhorse of astronomy. In the era of very large telescopes long-term
investigations are mainly performed with small professional instruments. Today they can be done
using self-designed spectrographs and highly efficient CCD cameras without the need for large
financial investments.This book explains the basic principles of spectroscopy including the
fundamental optical constraints and all mathematical aspects needed to understand the working
principles in detail. It covers the complete theoretical and practical design of standard and
Echelle spectrographs. Readers are guided through all necessary calculations enabling them to
engage in spectrograph design. The book also examines data acquisition with CCD cameras and
fiber optics as well as the constraints of specific data reduction and possible sources of
error. In closing it briefly highlights some main aspects of the research on massive stars and
spectropolarimetry as an extension of spectroscopy. The book offers a comprehensive
introduction to spectroscopy for students of physics and astronomy as well as a valuable
resource for amateur astronomers interested in learning the principles of spectroscopy and
spectrograph design.
