For sundial design purposes I had a table made by the mainframe computer of
my employer.

This table gives for every day in the year the mean values of the
declination and timeequation measured over the coming century: 2000 - 2099.
The values are for 12:00 GMT(noon).

I used the original formulas from 'Explanatory supplement to the
Astronomical Ephemeris' published by HM Stationery Office in London.

You can find it on:
http://www.chabot.demon.nl/sundials/SunMeanGMT.htm


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Thibaud Taudin-Chabot
52°18'19.85" North  04°51'09.45" East
home email: [EMAIL PROTECTED]
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