Skip to main content

Longitude calculations and comet observations, 1834 - 1849

Reference Code: GBR/0180/RGO 15/169

Scope and Contents

A ledger of calculations of the longitude of Madras from the Cape and from Greenwich. There are also observations of Halley's Comet, 28 October 1835 - 2 March 1836; Encke's Comet, 2-20 May 1842; the Great Comet, 5 March - 14 November 1843; Mauvais' Comet, 27 October 1844 - 10 March 1845; Wilmot's Comet, 24 April 1845 - 31 December 1847; and Gambart's Comet, 17 August 1846 - 15 February 1849. With the ledger are two small notebooks entitled '1835 Right Ascension of Centre of the Moon and Mars and mean solar times of the transit of Saturn and the Georgian' and '1835 Mean Solar Times of Transit'.


  • Creation: 1834 - 1849


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 volume(s) (1 volume)

Language of Materials


Finding aid date

2006-08-07 11:36:10+00:00

Includes index.



Repository Details

Part of the Cambridge University Library Repository

Cambridge University Library
West Road
Cambridge CB3 9DR United Kingdom