Sadler, Donald Harry, 1908 - 1987 (astronomer)
Found in 85 Collections and/or Records:
Papers of Sadler's investigations, 1949 - 1965
Papers on apparent places of stars, 1939 - 1956
Notes, tables and other papers of D.H. Sadler and J.G. Porter regarding the calculation of apparent places of stars, including some printed material.
Papers on astronomy
'Secular perturbations of Mercury by Venus' and the 'Integration of Complete Orbits' by D.H. Sadler, undated.
Papers on D.H. Sadler's visits, 1949
Correspondence and other papers regarding the visits of D.H. Sadler to Ottawa and other places.
Papers on G.M. Clemence, 1948 - 1953
Typescripts, mainly by D.H. Sadler, relating to discussions with G.M. Clemence regarding astronomical constants and other subjects.
Papers on lunar distances, 1965 - 1973
Correspondence and other papers regarding the article 'A Modern View of Lunar Distances' by D.H. Sadler.
Papers on navigation, 1948 - 1962
Papers on satellites, 1957 - 1963
Papers on solar ephemeris, 1950 - 1968
A folder regarding the basis of solar ephemeris, especially the comparison between 'Astronomical Ephemeris'/'Nautical Almanac' values from Newcomb's tables and A.P.A.E., Vol. XIV. There are also various other papers relating to 'Sun from Newcomb' work carried out by D.H. Sadler, E. Smith and J.G. Porter, dating mainly from the 1950s.
Papers on staff, 1957 - 1989
Papers regarding Nautical Almanac Office promotions and personal staff matters, mainly left by D.H. Sadler.
Papers on the astronomical day, 1919 - 1970
Papers concerning the change in reckoning of the astronomical day, including 'The Report of the Committee on the 24 Hour Method of Expressing Time', 1919; correspondence with the Hydrographer concerning documents; correspondence between D.H. Sadler and the Royal Astronomical Society; and handwritten notes by Sadler on the history and timetable of the proposed change.
Papers on the Institute of Navigation, 1949 - 1954
Papers on the International Astronomical Union, 1948 - 1952
Papers on the International Astronomical Union, 1953 - 1958
Papers on the International Astronomical Union, 1959 - 1963
Papers on the lunar ephemeris amendment, 1950 - 1951
Copies of D.H. Sadler's paper 'Amendment to the Lunar Ephemeris', published in 'Monthly Notices of the Royal Astronomical Society', Vol. 101, 1954, with related papers. The paper concerns the recommendation of the Paris Conference on the Fundamental Constants of Astronomy (1950) to amend the lunar ephemeris to bring it into accordance with the solar ephemeris.
Papers on the 'Man Is Not Lost' exhibit, 1965 - 1968
Papers regarding the exhibition 'Man Is Not Lost' at the National Maritime Museum for the bicentenary of the 'Nautical Almanac'. The papers include notes on the preparations, a schedule of featured exhibits, a description of the exhibition, and specifications for the exhibition, with diagrams. There is also a letter from Basil Greenhill, Nautical Maritime Museum, to D.H. Sadler, Nautical Almanac Office, regarding keeping the exhibition at the Museum for two more years.
Papers on the N.A.O., 1958 - 1971
Miscellaneous papers regarding the activities of the Nautical Almanac Office, including the N.A.O. Library book plate; notes from D.H. Sadler to the Astronomer Royal on astronomical ephemeris, 12 and 17 March 1969; and material on the bicentenary of the first 'Nautical Almanac', 1958-1961.
Papers on the N.A.O. and Almanac, 1971
'Miscellaneous Notes on N.A.O. Records and Files' by D.H. Sadler, 25 January 1971, 16 pages, and 'Extracts, Relating to the Nautical Almanac from the Manuscript Book "Auto-Biographical Notes" by Edwin Dunkin...now in the Library of the Royal Astronomical Society', by Sadler, 2 June 1971, 6 pages. Attached to the inside back cover of the binder is a photocopy of an article by Dunkin on the 'Nautical Almanac', 4 pages.
Papers on the N.A.O. and Almanac, 1971 - 1975
Photocopies of two papers by D.H. Sadler: 'Miscellaneous Notes on N.A.O. Records and Files', 25 January 1971, 16 pages, and 'Extracts, Relating to the Nautical Almanac from the Manuscript Book "Auto-Biographical Notes" by Edwin Dunkin...now in the Library of the Royal Astronomical Society', 2 June 1971, 6 pages. There is also the typescript of 'The Expanding Role of H.M. Nautical Almanac Office 1818-1975' by G.A. Wilkins, 1975, 7 pages.
Papers on the National Committee for Astronomy, 1944 - 1947
Papers on the Nautical Almanac Office, 1930 - 1948
Papers on the Nautical Almanac Office, 1937 - 1948
Papers on the Nautical Almanac Office, 1938 - 1956
Papers on the Royal Astronomical Society, 1957 - 1963
- Australia 2
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- Herstmonceux 1
- Netherlands 1
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- United States 1
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