XII. Catalogue of double stars

Abstract

Introductory Remarks. The following catalogue contains not only double-stars, but also those that are treble, double-double, quadruple, double-treble, and multiple. The particulars I have given of them are comprehended under the following general heads. I. The names of the starts and number in Flamstead's Catalogue; or, if not contained therein, such a description of their situation as will be found sufficient to point them out. II. The comparative size of the stars. On this occasion I have used the terms equal, a little unequal, pretty unequal, considerably unequal, as expressing the different gradations to which I have endeavoured to affix always the same meaning. III. The colours of the stars as they appeared to me when I viewed them.