Dear Siegfried and Bryan, Hello USA, und Grüß nach Deutschland aus Irland.
I reattach my spreadsheet, this time having added the *Line of Declination* worksheet. Again thanks to Albert E Waugh! On the *Hour Lines* worksheet, Siegfried, you will see, from cells L1 to V222, the necessary formulae. I link the spreadsheet to CAD-CAM programs and use a simple macro to produce the hourline "fan". Then, using a routing machine, I make 280 mm diameter dials, to individual order. Most welcome to use, and improve, the spreadsheet. If I can help in any other way, don't hesitate to contact me. Best regards, Cormac. Cormac Lalor 00353 86 813 8667
Local Apparent Time - Hour Angles.xlsx
Description: MS-Excel 2007 spreadsheet
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