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Catalogues and other papers, 1801 - 1830

Reference Code: GBR/0180/RGO 5/222

Scope and Contents

Various catalogues reduced to the beginnings of several years in right ascension and north polar distance for 1801-1830, comparison of catalogues at different epochs, and computed north polar distances by different refractions; computation of the Sun's diameter in turn reduced to the Earth's mean distance, 1801-1816; an account of William Hardy's transit clock, 1811-1830; and the zenith distance of Alpha Lyrae, 28 January 1825 - 17 May 1830, made with both Edward Troughton and Thomas Jones' mural circles.


  • 1801 - 1830

Conditions Governing Access

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) (1 folder)

Language of Materials


Former / Other Reference


Finding aid date

2005-11-21 10:42:26+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