Henry Raper
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Henry Raper is a member of the following lists: Navigation, Royal Navy officers and 1790s births.
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Details
| Birthday |
30th November, 1798
|
| Died |
6th January, 1859
|
Henry Raper (1799 – 6 January 1859) was a British Royal Naval lieutenant who became a nineteenth-century authority on navigation. Amongst his achievements was his quantification of the unreliability of a key longitudinal measurement, lunar distance, when taken at different times. One early beneficiary of Raper's research was Robert FitzRoy, whose second expedition was made famous by the work of his travelling companion, Charles Darwin.
