On a sundial shaped for that purpose, you can read where in the earth, the sun at that moment, is in the zenith. See on my website the sundial in Maaseik in Flanders (Belgium): http://www.wijzerweb.be/maaseik002A.html Click on the little pictures to enlarge them.
Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch): http://www.wijzerweb.be Op 16-nov-2010, om 22:38 heeft Jos Kint het volgende geschreven: > Dear sun dialists, > > What can be calculated with a good sun dial? Here is a list of 19 topics. Can > you add some more items? > 1. The hour of the day > 2. The day of the year. > 3. The solar altitude. > 4. The solar azimuth. > 5. The longitude of the sun dial. > 6. The latitude of the sun dial. > 7. The moment of the equinoxes > 8. The moment of the solstices. > 9. The length of the tropical year > 10. The equation of time > 11. The excentricity of the earth orbital around the sun. > 12. The obliquity of the eclips > 13. A compass function > 14. The declination of the sun. > 15. The moment of the perihelion > 16. The moment of the aphelion > 17. The moment of the next sun set > 18. The Babylonic time > 19. The Italian time > > > Jos Kint > --------------------------------------------------- > https://lists.uni-koeln.de/mailman/listinfo/sundial >
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