Catalogue of double stars
Subtitle: from observations made at the Royal Observatory, Greenwich, with the 28-inch refractor during the years 1893-1919
By: under the direction of Sir Frank Watson Dyson.
Contributors: Dyson, Frank Watson, 1868-1939.
Publisher: H. M. Stationery Off.
Published: 1921
Place of publication: London
Subjects: Double stars.