This star guide enables astronomers to choose a class of object, and for any month of the year find an observation list that begins with the easiest through to progressively more difficult targets. Following detailed descriptive summaries of each class of object, it includes extensive lists of deep-sky targets which are classified according to type of object. Amateur astronomers of all levels will find this book invaluable for its broad-ranging background material, its lists of fascinating objects, and for its power to improve practical observing skills while viewing many different types of deep-sky objects.Hubblea#39;s tuning fork diagram showing the main galaxy types. There is also a classification for galaxies intermediate between spirals and ellipticals, the lenticular galaxies, classified as SO, while SAO is for those that are ordinary, and SBO foranbsp;...
|Title||:||Field Guide to the Deep Sky Objects|
|Publisher||:||Springer Science & Business Media - 2013-03-09|