Here is a unique and fascinating reference book for every serious deep-sky observer! Entries for each of more than 500 deep-sky objects provide far more than th
This book is for the amateur astronomer who wants to know about the astrophysical nature of deep sky objects. The information is presented in a concise format a
This title is a comprehensive set of visual descriptions of deep-sky objects visible from the northern hemisphere. It is a record of the most extensive and syst