. A general catalogue of double stars within 121⁰ of the north pole. 7 28 10 13 9-7 5-55 A 3 13665 A 1250 A. G. Camb. 14432 23 59 43 29 32 A 3 266 r. PUBLISHED BY THE CARNEGIE INSTITUTION OF WASHINGTON 1906 CARNEGIE INSTITUTION OF WASHINGTONPublication No. 5 (Part One) PRINTED AT THE UNIVERSITY OF CHICAGO PRESSCHICAGO INTRODUCTION This catalogue in its first form was the result of my own needs soon after acquiring the six-inch Clark refractor in 1870. From the beginning that instrument was devoted almost entirely to theobservation of double stars. Ob
. A general catalogue of double stars within 121⁰ of the north pole. 7 28 10 13 9-7 5-55 A 3 13665 A 1250 A. G. Camb. 14432 23 59 43 29 32 A 3 266 r. PUBLISHED BY THE CARNEGIE INSTITUTION OF WASHINGTON 1906 CARNEGIE INSTITUTION OF WASHINGTONPublication No. 5 (Part One) PRINTED AT THE UNIVERSITY OF CHICAGO PRESSCHICAGO INTRODUCTION This catalogue in its first form was the result of my own needs soon after acquiring the six-inch Clark refractor in 1870. From the beginning that instrument was devoted almost entirely to theobservation of double stars. Objects were constantly being found which could not be identified in anyof the books at hand for reference, the principal one being an early edition of Webbs Celestial this time there were but few books in Chicago bearing upon the subject of double stars. Theold Dearborn Observatory, then under the directorship of Professor T. H. Safford, had a copy ofStruves Mensurae Micrometricae, some incomplete volumes of the Astronomische Nachrichten, and a fewother works of minor importance. The small refractor showed many pairs, more or less difficult,which could not be found recorded in
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectstars, bookyear1906
