ALTITUDE RING SUNDIAL
Altitude ring sundial. Another type of altitude sundial that became very popular during the 15th, 16th and 17th centuries is this ring, which, due to its small size, allowed it to be easily carried in any pocket.
On this occasion, the gnomon is replaced by a small hole made in the surface of the ring. This hole can be moved around the ring to place it on the date on which the measurement is to be made.
OPERATION
Its operation is very simple, since it is only necessary to suspend it freely and orient it towards the sun, in such a way that we get a ray of light to penetrate the hole, providing us with the local solar time on the opposite wall, on the scale engraved on the inside of the ring.
Our ring is a reproduction of the one made by the German astronomer H.S. Thorn around the year 1700, so its reading accuracy is only approximate.
Made of bronze-plated metal, it is presented in a nice case for a perfect gift. It is also accompanied by a small booklet with instructions on how to operate it.
We supply them in three versions:
-Keychain
-Pendant
-As a clip (See photos in versions)
Please select it by clicking on the corresponding tab
Measurements
Diameter: 3 cm
VAT INCLUDED
