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Errors in lunar distances, 1765 - 1766

Reference Code: GBR/0180/RGO 4/292
Errors in lunar distances
Errors in lunar distances

Scope and Contents

'To clear the distance of the Moon from a star from the effects of refraction and parallax', February 1766. The envelope includes copies of reports made to the Board of Longitude by John Howe, undated, and M. Raper of Thorley Hall, 9 July 1765, on the method of Israel Lyons and George Witchell for correcting observed distances. There are also a number of tables on the Sun's parallax.


  • 1765 - 1766

Conditions Governing Access

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1 volume(s) (1 volume (20 ff.))

Language of Materials


The UK Archival Thesaurus has been integrated with our catalogue, thanks to Kings College London and the AIM25 project for their support with this.