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The Aitken Double Star Catalogue, or ADS, is a star catalogue of double stars. It was compiled by Robert Grant Aitken and published in 1932 in two volumes, under the name New general catalogue of double stars within 120° of the North Pole. It contains measurements of 17,180 double stars north of declination −30°. Entries in this catalogue are generally referred to by an index number prefixed with the letters ADS.