Hi Thibaud: you suggested the following following solution to the Azimuthal gnomon height problem:
>How about making concentric rings for each declination, the innermost for >+23.44 and the outermost for -23.44 I thought about this ring order also and have not rejected it. If you look at Mayall's azimuthal dial on page 181, you will see that he does something similar to what you propose, by combining two months in each ring. (In his version, however, he places the summer months on the outside instead of the inside and he doesn't correct for the EOT or longitude). Someone wrote you back and said that your idea wouldn't work because it would produce the traditional analemma shaped hour lines. But I'm not so sure he was correct, because that kind of dial requires a nodus and an azimuthal dial does not. John C.
