Dear Gian Casalengo, Thank you for your interesting example...
> ...you can use "Orologi Solari" to design > an analemmatic vertical dial like the one > you describe. I am glad we get the same answer! Gianni Ferrari is quite right... > ... Analemmatic are never altitude sundials, > even if they are built on a vertical wall. Nevertheless, I think the sundial that Frank Evans wants IS an Analemmatic Dial on a Vertical Wall. He wants an elliptical hour ring and so on. Perhaps he will tell us all soon! Frank King --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
