Observations made with the Cookson floating zenith telescope in the years 1927-1936 at the Royal observatory, Greenwich: and the determination of the variation of latitude and the constant of nutation from observations in the years 1911-1936
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Carloforte city Mean Z.D. coefficient column combined constant of aberration constant of nutation Cookson correlation derived determination diurnal variation dual Date dual dual Weight Gaithersburg given in Table Group and Group group corrections Group Mean Date International Latitude Service International results July June Kawasaki Mean Date Temp mean latitude Mean Resi mean residuals mean value Mean Z.D. North mean zenith distance micrometer morning observations morning pairs NNW 9 normal equations North Group Resi nutation constant nutation factors obtained plates polar motion precession programme proper motion right ascension Sept Spectral Type SSE 9 SSW 9 SSW SSW WSW star-pairs stars stations SW 9 sw sw tidal effect tion Wind Velo unit weight variation of latitude wind effect Wind Mean Z.D. Wind Wind Mean WSW 9 WSW WSW z-term Z.D. North Group zenith telescope