Sadler, Donald Harry, 1908 - 1987 (astronomer)
Found in 85 Collections and/or Records:
Accurate Calculation of the Apparent Places of Stars, 1953
A reprint of Porter and D.H. Sadler's 'The Accurate Calculation of the Apparent Places of Stars', 'Monthly Notices of the Royal Astronomical Society', Vol. 113, No. 4, pp. 455-467.
Comet Pons-Winnecke, 1938
'Comet Pons-Winnecke. Methods of combining 1927 and 1933 apparitions', a draft paper by D.H. Sadler, dated 30 March 1938, with annotations by Porter.
Comments on Porter's notes, 1953-06-29
'Preliminary comments on J.G.P.'s notes on "The Perturbation-of-Elements Method"', produced by Porter in connection with his work at the N.A.O. and sent to D.H. Sadler.
Correspondence and papers on staff, 1948 - 1954
Correspondence of D.H. Sadler, 1943 - 1970
Personal correspondence of D.H. Sadler of the Nautical Almanac Office.
Correspondence of Robert Atkinson, 1946 - 1963
Correspondence on astro-navigation, 1944-03-09 - 1944-03-15
A letter from W.A.H. Watson, Air Ministry, to D.H. Sadler, Nautical Almanac Office, 9 March 1944, and Sadler's reply of 15 March, regarding 'The ABC of Practical Astro-Navigation' by R.K. Vandervord and whether it may have infringed Crown Copyright.
Correspondence on convergent series, 1947
A small set of correspondence with D.H. Sadler, N.A.O., regarding slowly convergent series.
Correspondence on eclipse expeditions, 1949 - 1952
Correspondence on institutions, 1949 - 1954
Correspondence on night illumination diagrams, 1946
A letter from D.H. Sadler, Nautical Almanac Office, to H. Spencer Jones, 5 June 1946, regarding Ryde night illumination diagrams, with Spencer Jones' reply of 11 June 1946.
Correspondence on observatories, 1924 - 1948
Correspondence on post-war astronomy, 1945 - 1947
Correspondence on Royal Society committees, 1961 - 1963
Correspondence on scientific matters, 1948 - 1949
Correspondence between the Royal Observatory, Greenwich; the Nautical Almanac Office; and the Department of Physical Research concerning a proposal for a later report on the course on numerical computation with D.H. Sadler as lecturer.
Correspondence on star positions, 1956
Three pieces of correspondence between D.H. Sadler, N.A.O., and Professor Dirk Brouwer regarding automatic measurement of star positions.
Correspondence on the Destination Almanac, 1954
Three items of correspondence between Dr G.M. Clemence of the United States Naval Observatory and D.H. Sadler of the Nautical Almanac Office regarding the Destination Almanac.
Correspondence on the E.S.O., 1953-12-29 - 1954-01-15
Correspondence on the I.A.U. meeting, 1946
A letter from H. Spencer Jones to D.H. Sadler, 25 February 1949, and Sadler's reply of 26 February, regarding the meeting of the International Astronomical Union in Copenhagen in 1946.
Correspondence on the move to Herstmonceux, 1946 - 1957
Correspondence on the Nautical Almanac Office, 1948 - 1963
Correspondence on the Nautical Almanac Office, 1939 - 1956
Correspondence on the Royal Astronomical Society, 1937 - 1949
Correspondence on the Royal Society, 1928 - 1948
Correspondence on time signals, 1955 - 1963
- Australia 2
- Canada 2
- Russia 2
- South Africa 2
- Time 2
- Africa 1
- Astronomical observatories 1
- China 1
- Cyprus 1
- Germany 1
- Herstmonceux 1
- Netherlands 1
- New Zealand 1
- Satellites 1
- United States 1
- Washington 1 ∧ less