Concise Catalog of Deep sky Objects : Astrophysical Information for 500 Galaxies Clusters and Nebulae 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 the usual astronomical data they also detail in every case the most interesting facts. Physical factors astrophysical information evolution unusual features the list is endless. The objects are all listed in NGC order which were originally assigned in approximate order of location from west to east convenient for reference because objects that can be seen on a given night will occur within a few pages of each other in the book. Astronomers can now get an insight into exactly what they are looking at to add a new level of insight and enjoyment to deep sky observing. Introduction The Messier Objects NGC (New General Catalogue) Objects NGC 0 936 NGC 1022 1999 NGC 2022 2985 NGC 3003 3998 NGC 4026 4995 NGC 5005 5982 NGC 6093 6994 NGC 7000 7814 IC (Index Catalogue) Objects Index.