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Papers of Sadler's investigations, 1949 - 1965

Reference Code: GBR/0180/RGO 16/118

Scope and Contents

Papers relating to D.H. Sadler's miscellaneous investigations, including, among other items, 'Astrometric Ephemeris of Pluto'; a note on the use of the equinox for the preceding or nearest year; papers relating to ephemerides of minor planets; 'Demonstration of Hollerith Machines'; material on P.Z.T. (Photographic Zenith Tube) Stars, 1950; J.G. Porter, 'The Orbit of a Meteor Stream'; Sadler, 'The Work of the Nautical Almanac Office' and 'Interpolation of the Lunar Ephemeris at Daily Intervals'; and G.A. Wilkins, 'Future Work of N.A.O. Division II', 1965.


  • Creation: 1949 - 1965


Conditions Governing Access

From the Management Group:

Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (


1 envelope(s) (1 envelope)

Language of Materials


Former / Other Reference

NAO Box 18

Finding aid date

2006-11-24 15:50:54+00:00

Includes index.

Repository Details

Part of the Cambridge University Library Repository

Cambridge University Library
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Cambridge CB3 9DR United Kingdom