Hello everyone. One more suggestion: the Android app "Sol et Umbra" or the computer program "Sun Ephemeris" can provide you all the information you need. Give it a try: https://www.sundials.eu/download/download1_enu.html Regards. Gian
Il mar 21 gen 2025, 00:32 Donald Christensen <dchristensen...@gmail.com> ha scritto: > A big thank you to everyone. This is very helpful! : ) > > > Cheers > Donald Christensen > 0467 332 227 > > If you focus on what you lack, you'll lose what you have. If you focus on > what you have, you gain what you lack. > > > On Tue, Jan 21, 2025 at 4:48 AM John Carmichael <jlcarmich...@comcast.net> > wrote: > >> Hello Donald: >> >> >> >> I always used the nice program made by Piers Nicholson (I think). It’s >> easy to use and will give you the data you said you need. >> >> >> >> Hope this helps, >> >> >> >> http://www.solar-noon.com/ >> >> >> >> >> >> John Carmichael >> >> >> >> John L. Carmichael >> >> Sundial Sculptures >> >> 925 E. Foothills Dr. >> <https://www.google.com/maps/search/925+E.+Foothills+Dr.+Tucson+AZ+85718-4716+USA?entry=gmail&source=g> >> >> Tucson AZ 85718-4716 >> <https://www.google.com/maps/search/925+E.+Foothills+Dr.+Tucson+AZ+85718-4716+USA?entry=gmail&source=g> >> >> USA >> <https://www.google.com/maps/search/925+E.+Foothills+Dr.+Tucson+AZ+85718-4716+USA?entry=gmail&source=g> >> >> Tel: 520-6961709 >> >> Email: jlcarmich...@comcast.net >> >> *Sundial Sculptures:* http://www.sundialsculptures.com >> >> >> >> *From:* sundial [mailto:sundial-boun...@uni-koeln.de] *On Behalf Of *Donald >> Christensen >> *Sent:* Wednesday, January 15, 2025 7:24 PM >> *To:* Sundial mailing list <sundial@uni-koeln.de> >> *Subject:* Find true north >> >> >> >> Years ago I wrote a program to find the true north. It has since been >> corrupted and I have to make a new one. My notes have been lost as well so >> I have to research how to again >> >> >> >> In my old program I inputted the longitude and the standard meridian. It >> then calculates the difference. It also looks up the equation of time and >> adjusts for this. It then prints out a yearly calendar. >> >> >> >> Example >> >> >> >> On this certain day and month, the sun will be directly overhead at >> 11:23:17. However, on this certain day and month, the sun will be directly >> overhead at 1:13:25 >> >> >> >> Will you help find the math and an eot chart? >> >> >> >> Also, Is there a website that does this already? When I write the program >> I want to test it for accuracy. >> >> >> >> >> Cheers >> Donald Christensen >> 0467 332 227 >> >> >> >> If you focus on what you lack, you'll lose what you have. If you focus on >> what you have, you gain what you lack. >> > --------------------------------------------------- > https://lists.uni-koeln.de/mailman/listinfo/sundial > >
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