XVIII. Catalogue of 500 new neb nebulous stars, planetary nebula:, and clusters of stars; with remarks on the construction of the heavens

Abstract

Since the publication of my former two catalogues of nebulae, I have, in the continuation of my telescopic sweeps, met with a number of objects that will enrich our natural history, as it may be called, of the heavens. A catalogue of them will be found at the end of this paper, containing 500 new nebulas, nebulous stars, planetary nebulae, and clusters of stars. These objects have been arranged in eight classes, in conformity with the former catalogues, of which the present one is therefore a regular continuation. This renders it unnecessary to give any further explanation, either of the contents of its columns, or the abbreviations which have been used in the description of the objects