Product images of Universal equinoctial armillary 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 armillary dial
Universal equinoctial armillary dial for latitudes 0â”œÃ—_-90â”œÃ—_ north. The base is supported by three levelling screws and carries a degree circle. Within this, the circular plate that supports the dial is free to rotate. A glass bubble level is fixed across one diameter. Placed on an axis perpendicular to the bubble level, two legs support the dial. They are topped by a circular joint, within which the semicircular latitude arc is pivoted. The support is pierced where the latitude arc passes through it to allow the arc to be adjusted to the correct value.
- Image reference: D8970
- National Maritime Museum, Greenwich, London