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--- Begin Message ---Jack thanks for the feedback, I appreciate it. Simon Sent from Yahoo Mail on Android On Thu, Jan 26, 2017 at 23:12, Jack Aubert<[email protected]> wrote: HI Simon, I like to use the “time of solar transit” version of the EOT from your spreadsheet because I can never remember with any confidence if I am correcting the watch or the dial. Jack Aubert From: sundial [mailto:[email protected]] On Behalf Of Simon Wheaton Smith Sent: Wednesday, January 25, 2017 8:08 PM To: Kenneth R clark <[email protected]> Cc: [email protected] Subject: Re: Looking for minutes and seconds correction for whole year for Equation of Time plaque Last email from me today... here is the 4 year EOT from my main book Simon On Wed, Jan 25, 2017 at 5:21 PM, Kenneth R clark <[email protected]> wrote: I had an error message from AOL Sorry for no subject line and my files were not sent. Let me retry with this account. Hi everyone, I am working on my Equation of Time plaque for my aluminum cross sundial. All the instructions and graphics and EQT will be on an 8 ½” diameter ½” aluminum plate. I do not want to use the standard graph found on many sundials but instead a chart for the whole year, mins and secs, to add or subtract total correction to get watch time. I do not have much room for detailed instructions. I looked at difference sources for the chart and would like to verify the most accurate times to use the four year leap year cycle for a church at 40.1526N, 76.6038W. I have looked at the Solar Noon calculator, Sonne and Shadows-(cannot input decimal degrees?) Are there other sources or spreadsheet programs? I like to convey that sundials are accurate. I envision that a person will wait till the shadow is on a line and the person will know what time it is suppose to be even though this type of sundial may not be design for precision. I made a quick drawing. There will be some type of sun image at the top and a logo at the bottom for the location. The chart in the center is from another project that I did just to see how it would look and if the printing is large enough to read. I would have to change the inputs to standard time for the whole year. I have also attached a picture of the sundial. I just want to know if I am using the right times and would appreciate any comments or suggestions. Thanks very much Ken Clark Elizabethtown, PA --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial -- Simon Wheaton-Smith www.illustratingshadows.com Phoenix, AZ W 112.1, N 33.5
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