Chris Lusby Taylor, has very kindly written me that in my first Email *“How trace the italic hour lines” *I have made an error: it’s true!
The error is serious enough and I thank Chris and apologize to all L I wrote *Also for each point of the line of horizon (on the sundial) pass one hour line with Modern , one with Italic AND one with Babylonian hours.* But, as Chris writes, *there is no point on the horizon common to both an Italian and to Babylonian hour line. * The correct sentence had to be *pass one hour line with Modern , one with Italic OR one with Babylonian hours.* * * When F <12 (or HMod<12) the modern hour line intersects the horizon in a point that is West of the meridian line and where also the Italic line I=2F passes. When F >12 (or HMod>12) the modern hour line intersects the horizon in a point that is East of the meridian line and where also the Babylonian line B=2F-24 passes. So the line B=2 crosses the line of the horizon for F=13 and NOT for F=11, as I have written. Best wishes Gianni - Mail to : gfme...@gmail.com Lat. 44;38,18.5N Long. 10;56,05.3E
Ita_Bab.pdf
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