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Published online by Cambridge University Press: 03 August 2017
Nearly 20000 double stars have been detected from star positions listed in the Astrographic Catalogue. However, an examination of the various discoverer's efforts reveals that the past searches have been very incomplete. In fact, if the limits adopted by one discoverer were applied to the remainder of the catalogue, approximately 3·105 additional pairs would be found. Is such an endeavor justifiable scientifically?