Both Ron & Mike have got it almost right it seems.. If you intend to make a ceiling (or any other kind of dial) by connecting the hour points shown by the shadow of the nodus on at least two of the four days when EOT equals zero, then you would have a perfectly good dial that is automatically corrected for longitude. Wouldn't you?
The two best days to mark the location of the nodus's shadow would be those dates that produce the longest lines when connected. ei. dates close to the solstices. Those dates would be December 25 and June 14. John John L. Carmichael Jr. Sundial Sculptures 925 E. Foothills Dr. Tucson Arizona 85718 USA Tel: 520-696-1709 Email: [EMAIL PROTECTED] Website: <http://www.sundialsculptures.com>
