there are many excellent sources for that which you seek. my own offering would be my illustratingshadows.xls on my Web site which has an astronomically appropriate worksheet, decimal lat and long are used, not minutes and seconds. And I have also averaged 4 years of them in supplemental Shadows.pdf also on my Web site:- www.illustratingshadows.com
Simon Sent from Yahoo Mail on Android On Wed, Jan 25, 2017 at 17:21, 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 onmy Equation of Time plaque for my aluminum cross sundial. All the instructions and graphics and EQT willbe on an 8 ½” diameter ½” aluminum plate. I do not want to use the standard graph found on many sundials butinstead a chart for the whole year, mins and secs, to add or subtract totalcorrection to get watch time. I do nothave much room for detailed instructions. I looked atdifference sources for the chart and would like to verify the most accurate timesto 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 conveythat sundials are accurate. I envisionthat a person will wait till the shadow is on a line and the person will knowwhat time it is suppose to be even though this type of sundial may not be designfor precision. I made a quickdrawing. There will be some type of sunimage at the top and a logo at the bottom for the location. The chart in the center is from anotherproject that I did just to see how it would look and if the printing is large enoughto read. I would have to change theinputs to standard time for the whole year. I have also attached a picture of the sundial. I just want toknow if I am using the right times and would appreciate any comments orsuggestions. Thanks very much Ken Clark Elizabethtown,PA
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