Observations made with the Cookson floating zenith telescopein the years 1919-1927 at the Royal observatory, Greenwich
Subtitle: for the determination of the variation of latitude and constant of aberration
By: under the direction of Sir Frank Dyson. astonomer royal.  Pub. by order of the Board of admiralty.
Publisher: H. M. Stationery off
Published: 1928
Place of publication: London
Language: eng
Number of pages: 67
Subjects: Stars -- Observations.