Written specially for practical amateur astronomers who not only want to
observe, but want to know and understand the details of exactly what
they are looking at.
Presents an up-to-date detailed description of the objects, their
physics and their evolution (part one); and then (part two) to consider
how to observe and record them successfully.
Delivers a wealth of information for all levels of amateur observers,
from the beginner to the experienced; it is equally fascinating for
practical astronomers, and also for those who simply want to find out
more about these unusual star systems.