Very nice. -Bill Gottesman On Fri, Dec 16, 2011 at 7:57 AM, Kevin Karney <ke...@karney.com> wrote:
> Dear Fellow Gnonomists > > The comes with greetings from Elizabeth and myself for a very blessed > Christmas and a wish for the sunniest of days in 2012. > > The attachment is an intrinsic representation of the Equation of Time. An > intrinsic curve is one in which equal increments of abscissa are found > along the curve itself (rather than along a fixed axis - as in a > normal cartesian graph). Plotting a graph in this way allows it to be > folded - thus making a compact, but easily readable pictogram. You may > recall Fred Sawyer's paper (NASS Compendium 12 iii) on the Bury St Edmunds > dial - which inspired this re-design. > > The curve is 'accurate' for noon UTC, but you may like a copy of the graph > for noon in your particular Time Zone, incorporating the longitude > correction. If you would like a copy, then e-mail me with…. > 1) the name of your town/village > 2) your latitude and longitude in degrees and minutes > 3) the name of your time zone (e.g CET for Central European Time) > 4) your time zone offset in hours (e.g +1 for CET or -8 for PST) > 5) whether you print on A4 paper or US Letter > The curves take me seconds to generate, if I get the info exactly in this > format > > Best regards > Kevin Karney > Freedom Cottage, Llandogo, Monmouth NP25 4TP, Wales, UK > 51° 44' N 2° 41' W Zone 0 > + 44 1594 530 595 > > > --------------------------------------------------- > https://lists.uni-koeln.de/mailman/listinfo/sundial > > >
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