HI John,It seems that the instrument you are looking for is called a shepherd's
dial. It is mobile, you set the date, you hold it vertically and orientate the
horizontal equivalent gnomon towards the sun and it gives you the time. It is
calculated for a specific latitude. Best regards Hervé Guillemet Envoyé depuis
mon appareil Galaxy
-------- Message d'origine --------De : John Goodman via sundial
<sundial@uni-koeln.de> Date : 22/07/2024 16:14 (GMT+01:00) À : Fred Sawyer
<fwsaw...@gmail.com> Objet : Re: Azimuth Calculation Diese Nachricht wurde
eingewickelt um DMARC-kompatibel zu sein. Dieeigentliche Nachricht steht
dadurch in einem Anhang.This message was wrapped to be DMARC compliant. The
actual messagetext is therefore in an attachment.
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