This compilation of data on deep-sky objects covers Messier objects, New General Catalogue objects and Index Catalogue objects. These are classified as galaxies, clusters and nebulae of which 500 individual objects are listed. Observing the deep-sky beyond the limits of the Solar System is by far the most popular speciality for amateur astronomers. Two major catalogs of deep-sky objects are widely used: Messier's catalogue of 109 objects and the New...