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Tabulated data from Algiers: Declinations, 1930 - 1931

Reference Code: GBR/0180/RGO 81/30

Scope and Contents

From the Series:

Records for the 1930-1931 parallax programme of the Royal Observatory Greenwich and Cape Observatory to determine the solar parallax (distance to the Sun) by observations of the minor planet Eros and comparison stars.

The records comprise tabulated data sets based on photographic observations taken at Greenwich and at various international observatories (RGO 81/2-48), along with 20 volumes of micrometric measurements of photographic observations of Eros and comparison stars from the Cape Observatory and RO Greenwich (RGO 81/50-70). A set of contextualising notes and two printed texts by de Witt and Spencer Jones are catalogued at RGO 81/1 and RGO 81/49-50.


  • Creation: 1930 - 1931


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 folder(s) : Paper

Language of Materials


Finding aid date

2017-06-06 17:17:53+00:00


Repository Details

Part of the Cambridge University Library Repository

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