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Guidance for making observations of lunar eclipses, or eclipses of the Moon. Rooke writes: 'Eclipses of the Moone are observed for two principal ends; one astronomical, that by comparing observations with calculations, the theorie of the Moones motion may be perfected, and the tables therof reformed: The other, geographical, that by comparing among themselves the observations of the same ecliptical phases, made in diverse places, the difference of meridians or longitudes of those places may be discovered.'

Subject: Astronomy / Geography

Read to the Royal Society on 26 March 1662

Published in Philosophical Transactions as 'A method for observing the eclipses of the moon, free from the common inconveniencies, as it was left by the learned Mr. Rook, late Gresham-Professor of Geometry'

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Ink on paper
Page extent
2 pages

Creator name

Lawrence Rooke

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Lawrence Rooke, Paper, 'Direction for the observations of the eclipse of the Moone' by Mr Rook [Lawrence Rooke], 1662, CLP/8i/4, The Royal Society Archives, London,, accessed on 22 May 2024

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  • Classified Papers

    Dates: 1592-1741

    The 'Classified Papers' of the Royal Society are papers from British and international natural philosophers and scholars categorised according to subject areas.

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