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Astronomical Ring Dial, 10∅x0,4cm

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Reproduction in current materials of ancient instruments that are part of the cultural and scientific heritage because of their scientific, historical and aesthetic value.

The instrument is accompanied by a documentation with description in which their use is explained in detail.

Although we called it ring, it is based on the principle of the equatorial sun quadrant (the universal type). It was used a lot during the eighteenth century. Operation: Place the ring on the latitude of the place, disengage the time ring perpendicular to the meridian ring. Align the top of the ring to the south. The small cylinder in the corresponding month placed and rotate the ruler toward the sun, the light ray shines through the opening gives us the daylight hours in the time ring.

Portable universal (all latitudes) sundial. Universal Equatorial Solar Quadrant.
Zamac with brass bath laquered on oven. Wood base sapelli  (teinted with natural wax and polished).

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