I see that Patrick has given the history of this dial, so the actual date is determined.
However, for completeness to your actual enquiry, the candidate dates where the Golden Number and Canonical Letters match are: 1649, 1706, 1858, 1915 (and +/- 400 years on either side of those dates, but that takes the date range out of sensible candidates) A full write-up on the calculation of golden numbers and Easter dates, giving formulas & algorithms for the calculation, is available on the wikipedia page for Computus. — Barry On 27 Nov 2013, at 15:05, John Foad <[email protected]> wrote: > The dial at Marton-cum-Grafton in North Yorkshire has a gnomon engraved with > ‘C’ and ‘xiv’, being the Sunday or Dominical Letter, and the Golden Number, > for the year of its restoration. I *think* that translates to 1875 (given > that the dial is 19th century). Can anyone confirm this? And more > interestingly, does anyone have a calculator to show candidate years, given > the Sunday Letter and Golden Number? > > Many thanks for any help, > > John > <s0292b.jpg>--------------------------------------------------- > https://lists.uni-koeln.de/mailman/listinfo/sundial >
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