Re: Looking for minutes and seconds correction for whole year for Equation of Time plaque

2017-01-27 Thread Kevin Karney
Hi Ken I you want to observe how the Equation of Time varies over the years, go to my website http://www.precisedirections.co.uk/Sundials/index.html The second item may be of interest to you. It gives a table of EoTs (including the longitude correction for your time zone). And you can choose

RE: Looking for minutes and seconds correction for whole year, for Equation of Time plaque

2017-01-27 Thread Robert Kellogg
I have used Pyephem (a Python programming module) for accurate computation of solar transit and have put it to service to compute EOT for Ken's latitude and longitude. However, doing it to the second is pure fiction as the tropical year does not precisely repeat after 4 years cycle ... and

RE: Looking for minutes and seconds correction for whole year for Equation of Time plaque

2017-01-27 Thread Dave Bell
Thanks for reminding us of your work, Kevin! That’s a lovely piece of JavaScrpt! Dave From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Kevin Karney Sent: Friday, January 27, 2017 2:40 AM To: Kenneth R clark Cc: sundial@uni-koeln.de Subject: Re:

Re: Looking for minutes and seconds correction for whole year for Equation of Time plaque

2017-01-27 Thread Thibaud Taudin Chabot
Some time ago when I was able to use the mainframe computer of my employer I made a list of declination and time equation for each day for the years 2000-2099 and calculated the mean values for each date. I found the list again and attach it for who is interested. Thibaud Hi everyone,

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2017-01-27 Thread clarkkr--- via sundial
Diese Nachricht wurde eingewickelt um DMARC-kompatibel zu sein. Die eigentliche Nachricht steht dadurch in einem Anhang. This message was wrapped to be DMARC compliant. The actual message text is therefore in an attachment.--- Begin Message --- Thanks Bob and everyone else for their input.

Re: Looking for minutes and seconds correction for whole year, for Equation of Time plaque

2017-01-27 Thread Kenneth R clark
Thanks Bob and everyone else for their input. The EQT really does change way into the future. I am leaning towards Kevin Karney website: http://www.precisedirections.co.uk/Sundials/index.html using a “Victorian EOT” table adding or subtracting minutes. I could set it into the