Scope and Contents

Subtitled: 'Astro-Navigation Methods and Software for the PC' (London: The Stationery Office). The accompanying CD-ROM contains compact astronomical data for 1 Jan. 1986 - 31 Dec. 2010 in ASCII format and NavPac Astro-Navigation software to enable navigators to compute their position at sea from observations made with a marine sextant using an IBM PC or compatible. The manual explaining NavPac’s features and the algorithms that form the basis of the software are described in the book.

Scope and Contents Subtitled '.Astro-Navigation Methods and Software for the PC' (Taunton: United Kingdom Hydrographic Office). The accompanying CD-ROM contains compact astronomical data for 1 Jan. 1986 - 31 Dec. 2015 in ASCII format and NavPac Astro-Navigation software (Version 3.1.6) to enable navigators to compute their position at sea from observations made with a marine sextant using an IBM PC or compatible. The disc also contains a chapter from The Admiralty Manual of Navigation on the practical aspects...

Scope and Contents

(London: H.M. Stationery Office), with an accompanying floppy disc that was sent as a replacement for the original disc that is found with the volume. The disc contains the compact astronomical data for 1 Jan. 1986 - 31 Dec. 2000 in ASCII format and a software package called NavPac to enable navigators to compute their position at sea from observations made with a marine sextant using an IBM PC or compatible. The book includes a manual at the end explaining the features of NavPac.

Scope and Contents

Subtitled: 'Astro-Navigation Methods and Software for the PC' (London: The Stationery Office). Includes an accompanying CD-Rom containing data for 1 Jan. 1986 - 31 Dec. 2005 and NavPac Astro-Navigation software to enable navigators to compute their position at sea from observations made with a marine sextant using an IBM PC or compatible (Version 2.0).

Scope and Contents

Subtitled: 'Astro-Navigation Methods and Software for the PC' (Willmann-Bell, Inc., U.S.A.). Includes an accompanying CD-Rom containing compact astronomical data for 1 Jan. 1986 - 31 Dec. 2005 in ASCII format and a software package to enable navigators to compute their position at sea from observations made with a marine sextant using an IBM PC or compatible (updated for use under Windows 95).

Scope and Contents Subtitled 'Astro-Navigation Methods and Software for the PC' (Taunton: United Kingdom Hydrographic Office). The accompanying CD-ROM contains compact astronomical data for 1 Jan. 1986 - 31 Dec. 2010 and NavPac Astro-Navigation software to enable navigators to compute their position at sea from observations made with a marine sextant using an IBM PC or compatible. The disc also contains a copy of the book and of a chapter from The Admiralty Manual of Navigation on the practical aspects of...

Scope and Contents

Financial papers found loose. Comprises: a letter from Particle Physics and Astronomy Research Council about the subscription share rebate paid by the Civil Service Sports Council, 1994; a letter from Cabinet Office about potential privatisation of Chessington Computer Centre, 1995; income and expenditure account for RGO Club golf tournament, 1996; a floppy disk labelled "Club Accounts FY 1995/96 Master disk" and a floppy disk labelled "RGO Club * .doc files DS 31-7-97".

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'The Star Almanac for Land Surveyors for the year 1997', with a preface by J.V. Wall dated February 1996. There is also a floppy disc containing the Electronic Edition of the Almanac.

Scope and Contents

'The Star Almanac for Land Surveyors for the year 1998', with a preface by J.V. Wall dated November 1996. There is also a floppy disc containing the Electronic Edition of the Almanac.

Scope and Contents

'The Star Almanac for Land Surveyors for the year 1999', with a preface by J.V. Wall dated January 1998. There is also a floppy disc containing the Electronic Edition of the Almanac.

Scope and Contents

'The Star Almanac for Land Surveyors for the year 2000', with a preface by Richard Holdaway dated February 1999. There is also a floppy disc containing the Electronic Edition of the Almanac.

Scope and Contents

'The Star Almanac for Land Surveyors for the year 2002', with a preface by Richard Holdaway dated February 2001. There is a CD-Rom in a pocket in the inside cover containing the Electronic Edition of the Almanac.

Scope and Contents

'The Star Almanac for Land Surveyors for the year 2003', with a preface by Richard Holdaway dated February 2002. There is a CD-Rom in a pocket in the inside cover containing the Electronic Edition of the Almanac.

Scope and Contents

'The Star Almanac for Land Surveyors for the year 2004', with a preface by Richard Holdaway dated February 2003. There is a CD-Rom in a pocket in the inside cover containing the Electronic Edition of the Almanac.

Scope and Contents

'The Star Almanac for Land Surveyors for the year 2005', with a preface by Richard Holdaway dated February 2004. There is a CD-Rom in a pocket in the inside cover containing the Electronic Edition of the Almanac.

Scope and Contents

'The Star Almanac for Land Surveyors for the year 2006', with a preface by Richard Holdaway dated March 2005. There is a CD-Rom in a pocket in the inside cover containing the Electronic Edition of the Almanac.

Scope and Contents

'The Star Almanac for Land Surveyors for the year 2007', with a preface by Richard Holdaway dated March 2006. There is a CD-Rom in a pocket in the back inside cover containing the Electronic Edition of the Almanac.

Scope and Contents

'The Star Almanac for Land Surveyors for the year 2008', with a preface by M.S. Robinson, Chief Executive, United Kingdom Hydrographic Office dated June 2007. There is a CD-Rom in a pocket in the back inside cover containing the Electronic Edition of the Almanac.

Scope and Contents

'The Star Almanac for Land Surveyors for the year 2009', with a preface by M.S. Robinson, Chief Executive, United Kingdom Hydrographic Office dated March 2008. There is a CD-Rom in a pocket in the back inside cover containing the Electronic Edition of the Almanac.

Scope and Contents

'The Star Almanac for Land Surveyors for the year 2010', with a preface by M.S. Robinson, Chief Executive, United Kingdom Hydrographic Office dated April 2009. There is a CD-Rom in a pocket in the back inside cover containing the Electronic Edition of the Almanac.

Scope and Contents

Computer printout (76 pp) and electronic copy. Includes personal recollections of his appointment to the RGO’s Meridian Department in 1951, transfer to Herstmonceux in 1954, RGO duties and additional work on the Observatory Magazine, accounts of the installation of the PZT and Cooke RTC, and personal/family life. Gething left the RGO for GCHQ in 1957.

Scope and Contents All images from slides taken by DV Thomas unless otherwise attributed. 1. Herstmonceux Castle from the SE (RTC pavilion in background), 1959 2. Herstmonceux Castle from the SW, [1960?] 3. Herstmonceux Castle from the N, 1959 4. Herstmonceux Castle courtyard, 1959 5. Rhododendrons: Herstmonceux Castle grounds, [1960?] 6. RGO Herstmonceux Equatorial Group: 28" dome L; Astrographic (13") dome R, 1963 7. RGO Herstmonceux...

Scope and Contents

'Planetary and Lunar Coordinates for the years 2001-2020', with an accompanying CD-Rom in a pocket in the inside cover of the volume.

Scope and Contents

RGO, c.1960, 28 minutes
Breguet Clock, 5 minutes
Heathfield in the 1960s, 70 minutes
Chronometer Workshop, Herstmonceux, 24 minutes

Scope and Contents

Six floppy discs containing electronic files. Each is labelled. Includes various versions of manuscripts by Blackwell, e.g. Personal History Chapters 1-3 (2000).