December 2022
Page 22

The Belgian Altitude Dial: A Hevelius Dial

Follow-up article suggesting the previously discussed small Belgian altitude dial is a rare Hevelius dial, possibly a unique wooden example using the time of sunrise as a proxy for solar declination. Analysis shows deliberate geometric simplification in its layout.
Dials: Portable, Dials: Unusual, Historical Dials, Sundial Design & Layout

Steve Lelievre
Sue Manston