"The treatment of the topics is at a level appropriate to a science-based undergraduate degree. As far as possible the mathematics and physics background that may be needed for a topic is developed or given within that section. Science undergraduates taking an astronomy option will find Astrophysical Techniques an essential study aid. Amateur astronomers of any level will find this book to be of immense value. Professional astronomers should use this book as a source of information on areas unfamiliar to them."--BOOK JACKET.