Product images of Universal equinoctial ring dial
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Manufactured in the UK
All products are printed in the UK, using the latest digital presses and a giclée printmaking process.
We only use premium branded inks, and colours are independently verified to last between 100 and 200 years.
Universal equinoctial ring dial
Universal equinoctial ring dial for all latitudes. Standard dial (see related terms) except for the following details: the dial has a latitude scale, a scale for determining solar altitude, a date scale and a declination scale, but no zodiac scale. On both the obverse side and the inner rim of the equinoctial ring are hour scales and the equinoxes are marked at 9 â”œÃ²_ March and 12 â”œÃ²_ September. There is a star engraved on the slider rivet of the gnomon.
- Image reference: F2105-1
- National Maritime Museum, Greenwich, London, Gabb Collection