In a message dated 10/20/2002 6:19:28 PM Eastern Daylight Time, [EMAIL PROTECTED] writes:
> http://perso.wanadoo.fr/jean-paul.cornec/disk.htm I think it is very likely an altitude sundial. The holes on the right cover roughly 90 degrees. In my opinion they reflect the sun's declination (to cover -23.5 to 23.5 degrees, these holes would have to be twice the arc of that 47 degree span, or 94 degrees), and receive a shodow-casting pin on the proper date. The shadow would be cast across the dial to the markings on the left side. The fact that the top right-hand marking is at the same level as the top left hand marking suggests that this arrangement marks the sunrise and setting time on the summer equinox. You can estimate the latitude it was designed for from the noon reading on the equinox-approximately 45 degrees by your drawing. Bill G -
