NGC is one of the largest historical comprehensive catalogs, as it includes all types of non-stellar deep space objects. Henry Draper's Henry Draper Catalogue, published between 1918 and 1924, lists more than 225,000 of the brightest stars, named using HD followed by a 6-digit number. Sir Patrick Moore compiled the Caldwell catalogue in 1995 to complement the Messier catalog, listing 109 bright star clusters, nebulae, and galaxies named C1 to C109. This is a list of deep-sky objects of interest to amateur astronomy and not a catalog in the professional science sense. Other deep-sky observing lists for amateur astronomers predated it. See also List of astronomical catalogues Astrograph – a type of instrument used to produce astronomical catalogues. Star catalogue – discusses various types in more detail References External links Most astronomical catalogues can be queried electronically here (Centre de Données astronomiques de Strasbourg) Clickable Caldwell Object table Clickable Messier Object table A History of Star Catalogues