The apparent diameter of the sun? The location of the North Star (Polaris)
The declination of the wall to which it's attached Moon Time The name of the sundial maker The scientific awareness of the owner From: [email protected] [mailto:[email protected]] On Behalf Of Jos Kint Sent: Tuesday, November 16, 2010 2:38 PM To: [email protected] Subject: What can be calculated with a sun dial? 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
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