Scope and Contents

Comprises draft notes, tables and graphs for a report on the Herstmonceux Astrolabe. The report, possibly entitled 'Astrolabe Bulletins II', was compiled by David Thomas.

Scope and Contents

Comprises tabulated data of refraction formulae, various conversion tables and calculation aids, and tables of corrections to be applied to thermometers and barometers.

Scope and Contents

Comprises assorted papers, including tabulated data about cards for computer program 187/7, with print-outs; tabulated data with annotations; graphs; notes titled 'Approximate Mean Epoch of Astrolabe Observations' and 'Summary of Astr Cat Corrns'; tabulated data labelled 'Investigation into stars in groups F and G that have ∆n that appear to stand off'; and notes titled 'Astrolabe Summary'; 'Astrolabe Results'; and 'Astrolabe Weights'.

Scope and Contents

Comprises tabulated data titled 'Σ Corrections to Star-Dates Sid [Sidereal] Clock, Cape Astrolabe'.

Scope and Contents

Comprises annotated tabulated data of corrections to Cape Astrolabe results.

Scope and Contents

Comprises rough notes titled 'Cape Astrolabe Preliminary Catalogue Corrections'. Also includes tabulated data and graphs.

Scope and Contents

Comprises photocopies of tabulated data for Mars, Saturn and Vesta (originals are in RGO 87/21); notes and calculations about observations of Saturn; and tabulated data for observations of Saturn, Vesta and Mars.

Note: the photocopied data tables are each made up of 2 pieces of paper that were glued together in the past, and this adhesive is beginning to fail. Handle with care.

Scope and Contents Correspondence between R. H. Stoy of the Royal Observatory at the Cape of Good Hope, South Africa and David Thomas of the Royal Greenwich Observatory at Herstmonceux. Comprises the following letters: - David Thomas on his trip to Paris (report enclosed), conditions at the Cape and a fault with the Photographic Zenith Tube, 24 July 1963; - R. H. Stoy on the design of an astrolabe pavillion, weather conditions at the Cape and a 'Bright star list', 5 August 1963; - David Thomas...

Scope and Contents

Comprises notes about the transfer of the astrolabe to Royal Observatory, Cape of Good Hope, South Africa, the work to be undertaken there by David Thomas, and a letter from David Thomas about his journey to South Africa.

Scope and Contents

Comprises correspondence between David Thomas at Royal Greenwich Observatory, Herstmonceux, and J. D. Laing of the Royal Observatory, Cape of Good Hope, South Africa (later in the file this is called South African Astronomical Observatory). The correspondence discusses work on the astrolabe, results and reports. Enclosures mentioned in the letters appear to have been removed before deposit.

Scope and Contents

Comprises a letter from T Kiang [Tao Kiang] at Dunsink Observatory, County Dublin, Ireland, to David Thomas at Royal Greenwich Observatory, Herstmonceux, about a Chinese paper on 'Diurnal Variations', with a reply from David Thomas. An enclosure mentioned in the letter appears to have been removed before deposit.

Scope and Contents

Comprises correspondence between David Thomas at Royal Observatory, Cape of Good Hope, South Africa, and Humphry M. Smith at Royal Greenwich Observatory, Herstmonceux. The correspondence includes letters about the shipping of an astrolabe and papers to South Africa, astrolabe results, and International Astronomical Union (IAU) Commissions 4, 19 and 31. Enclosures mentioned in the letters appear to have been removed before deposit.

Scope and Contents

Comprises correspondence between David Thomas at Royal Observatory, Cape of Good Hope, South Africa, and Albert E. Carter at H. M. Nautical Almanac Office at Royal Greenwich Observatory, Herstmonceux. Includes correspondence on astrolabe results, computer programs, and computer data. Enclosures mentioned in the letters appear to have been removed before deposit.

Scope and Contents

Comprises correspondence between David V. Thomas at Royal Observatory, Cape of Good Hope, South Africa, and B. Guinot at Bureau International de l'Heure. Includes correspondence on astrolabe observations and results. Enclosures mentioned in the letters appear to have been removed before deposit.

Scope and Contents

Comprises correspondence between David V. Thomas at Royal Greenwich Observatory, Herstmonceux; R. H. Stoy and G. A. Harding at Royal Observatory, Cape of Good Hope, South Africa; a Mr Smith; and the Astronomer Royal. Includes correspondence on International Astronomical Union (IAU) Commission 8, work on the astrolabe, and astrolabe results. Enclosures mentioned in the letters appear to have been removed before deposit.